{"title":"Furnace Limit Switches","description":"\u003cp\u003eFurnace limit switches are safety devices that shut off the gas burner if the heat exchanger gets too hot. They protect against overheating caused by blocked airflow, failed blower motors, or dirty air filters. We carry \u003cstrong\u003eprimary limit switches\u003c\/strong\u003e (auto-reset), \u003cstrong\u003eauxiliary limit switches\u003c\/strong\u003e (manual-reset), and \u003cstrong\u003eflame rollout switches\u003c\/strong\u003e for all major furnace brands.\u003c\/p\u003e\n\u003ch3\u003eTypes of Limit Switches\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary High Limit (Auto-Reset)\u003c\/strong\u003e — Opens at a set temperature (typically 150°F-200°F) and automatically resets when the heat exchanger cools down. If your furnace cycles on and off every few minutes, a tripping high limit is likely the symptom — but the root cause is usually restricted airflow from a dirty filter or failed blower motor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuxiliary Limit (Manual-Reset)\u003c\/strong\u003e — A backup safety that requires you to press a button to reset after it trips. These typically open at a higher temperature than the primary limit. If it trips, there's a serious airflow problem that needs to be resolved before resetting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFlame Rollout Switch\u003c\/strong\u003e — Detects flames escaping the combustion chamber (rolling out of the burner box). This is a critical safety device — a tripping rollout switch can indicate a cracked heat exchanger or blocked flue. Never bypass a rollout switch.\u003c\/p\u003e","products":[{"product_id":"payne-pa4rng060000baaa-pressure-switch-jria74","title":"OEM Payne Low Pressure Limit Switch for Heat Pump PA4RNG060000BAAA","description":"\u003cdiv class=\"product-content\"\u003e\n\u003ch1\u003eOEM Payne Low Pressure Limit Switch for Heat Pump PA4RNG060000BAAA\u003c\/h1\u003e\n\u003cp\u003eThe pressure switch is the safety device that monitors refrigerant pressure in your Payne PA4RNG060000BAAA and opens the 24V control circuit if pressure leaves the safe operating range — protecting the compressor from running under a loss of charge or against dangerously high head pressure. When it fails or its setpoints drift, the unit won't start or locks out for no obvious reason, short-cycles on and off, delivers no cooling despite a good charge, or trips intermittently on hot days when head pressure rises.\n\nThis switch is defined by its cut-out and cut-in PSI setpoints (a low-pressure switch typically opens around 20 psi and recloses near 45 psi), its reset type (auto vs. manual), the connection\/thread style, and whether it is normally closed. Match the exact PSI rating to your model — a switch with the wrong setpoints either fails to protect the compressor or causes nuisance lockouts.\n\nOEM matters because the factory switch is calibrated to this system's design pressures. Generic switches commonly drift out of calibration or ship with approximate setpoints, so they either trip needlessly or, worse, allow the compressor to run in a condition it should have shut down for.\n\nInstall difficulty: 2\/5. Tools: an adjustable wrench and a multimeter for continuity testing. #1 safety warning: this switch sits on a pressurized refrigerant line — if it does NOT thread onto a self-sealing Schrader fitting, the system must be recovered by an EPA-certified technician before removal. Always kill power at the breaker first, and never vent refrigerant to atmosphere.\n\nShips same business day from our stocked warehouse on orders before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Payne model PA4RNG060000BAAA. Always verify the part number against your unit's data plate before ordering.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose OEM?\u003c\/h2\u003e\n\u003cp\u003eOEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.\u003c\/p\u003e\n\u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908354855283,"sku":"PAYNE-PA4RNG060000BAAA-PRESSURE_SWITCH-HK02ZA395","price":125.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908354888051,"sku":"PAYNE-PA4RNG060000BAAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395-1-1784663833313.jpg?v=1784663834"},{"product_id":"universal-furnace-limit-switch-160-f-high-temperature-safety-cutoff","title":"Universal Furnace Limit Switch 160°F — High Temperature Safety Cutoff","description":"\u003cp\u003eUniversal 160°F high-limit switch for gas furnaces. The limit switch is a critical safety device that shuts off the gas burners if the heat exchanger gets too hot — preventing cracking and fire hazard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSymptoms:\u003c\/strong\u003e Furnace starts then shuts off after a few minutes, short-cycling, error code for limit switch open, furnace runs but blower doesn't (limit trips from overheating).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Opens at 160°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual or auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Most residential gas furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off. Remove 2 wires. Unclip old switch from heat exchanger. Clip in new switch, reconnect wires. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010238202227,"sku":"NHVAC-LS-160","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/LS-160.jpg?v=1782265668"},{"product_id":"universal-furnace-limit-switch-200-f-high-temperature-safety-cutoff","title":"Universal Furnace Limit Switch 200°F — High Temperature Safety Cutoff","description":"\u003cp\u003eUniversal 200°F high-limit switch for gas furnaces. Higher temperature rating for furnaces with tighter heat exchanger tolerances or in warmer climates where return air temps run higher.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Opens at 200°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Residential gas furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off, swap 2 wires, clip in. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010238300531,"sku":"NHVAC-LS-200","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/LS-200.jpg?v=1782265670"},{"product_id":"universal-furnace-limit-switch-250-f-high-temperature-safety-cutoff","title":"Universal Furnace Limit Switch 250°F — High Temperature Safety Cutoff","description":"\u003cp\u003eUniversal 250°F high-limit switch for gas furnaces requiring higher temperature cutoff. Common on high-efficiency and commercial furnaces.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Opens at 250°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auto-reset\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63013405786483,"sku":"NHVAC-LS-250","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/LS-250.jpg?v=1782263235"},{"product_id":"universal-fan-limit-control-switch-combination-fan-high-limit","title":"Universal Fan Limit Control Switch — Combination Fan\/High Limit","description":"\u003cp\u003eUniversal combination fan limit control switch. Controls both the blower fan (turns on when plenum heats up, off when it cools) and the high-limit safety cutoff. The all-in-one control for older furnaces.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFan On:\u003c\/strong\u003e ~130°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFan Off:\u003c\/strong\u003e ~100°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Limit:\u003c\/strong\u003e ~200°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Combination fan\/limit\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63013405819251,"sku":"NHVAC-LS-FAN-CTRL","price":18.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/LS-FAN-CTRL.jpg?v=1782263162"},{"product_id":"tempstar-safety-thermostat-for-tnls2035hde-oem-limit-switch-ships-today","title":"Tempstar Safety Thermostat for TNLS2035HDE — OEM Limit Switch | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM safety thermostat (part 51302031100, \"TSTAT SAFETY\") is the temperature-limit protection switch for your Tempstar TNLS2035HDE. It is a snap-disc style control that monitors a critical temperature and opens the circuit if a high-limit condition is reached, protecting the compressor, coil, and electrical components from damage caused by overheating or abnormal operating conditions. When this safety fails open it can prevent the system from running at all; when it sticks closed it removes a key layer of protection. Replacing a faulty safety thermostat restores correct cutout behavior and keeps the unit operating within its design limits.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e51302031100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSafety \/ Limit Thermostat (Snap-Disc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eHigh-Limit Temperature Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Circuit\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM replacement safety thermostat for the Tempstar TNLS2035HDE and matching ICP\/Heil\/Comfortmaker units. Confirm the trip temperature and terminal style against the part you are removing.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service panel to reach the safety thermostat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the wire connections and mounting location.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the leads, unfasten the switch from its mounting surface, and note its orientation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new safety thermostat in the same position and reconnect the leads per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm the system completes a normal cycle without nuisance tripping.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUnit will not start or trips out on a safety\/limit fault.\u003c\/li\u003e\n\u003cli\u003eIntermittent shutdowns during normal operation.\u003c\/li\u003e\n\u003cli\u003eSwitch fails a continuity test at room temperature.\u003c\/li\u003e\n\u003cli\u003eVisible burning, corrosion, or cracked disc housing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Universal Replacement","offer_id":63021633306995,"sku":"51302031100-GEN","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048487698803,"sku":"51302031100","price":41.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-51302031100_2857014b-cc6b-4a1a-a685-c53c38defb38.jpg?v=1782961322"},{"product_id":"tempstar-safety-thermostat-limit-switch-for-tnls2030hde-oem-ships-today","title":"Tempstar Safety Thermostat Limit Switch for TNLS2030HDE — OEM | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM safety thermostat (part #51302031100, \"TSTAT SAFETY\") is a temperature-sensing limit switch that protects your Tempstar TNLS2030HDE unit from overheating and unsafe operating conditions. Unlike a wall thermostat, this safety control mounts inside the unit and opens the circuit when it senses an out-of-range temperature, shutting the system down before damage occurs. A failed safety thermostat can trip prematurely and cause nuisance shutdowns, or fail closed and lose its protective function entirely. Symptoms include short-cycling, the unit cutting out under load, or a system that runs without its safety limit responding. Replacing this control restores correct, code-compliant overtemperature protection.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e51302031100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eThermostat, Safety (Limit Switch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eTemperature Safety Cutout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (ICP \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect OEM fit for the Tempstar TNLS2030HDE unit and related ICP\/Heil\/Comfortmaker models that use the same safety limit thermostat. Verify the OEM part number on your existing control before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the disconnect and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service panel to reach the safety thermostat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the wiring and mounting position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the leads and unfasten the old safety thermostat from its mounting surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new control in the same location, ensuring good thermal contact, and reconnect the leads per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm the unit runs and the safety control holds the circuit closed under normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUnit short-cycles or shuts down under normal load\u003c\/li\u003e\n\u003cli\u003eNuisance trips with no actual overheating\u003c\/li\u003e\n\u003cli\u003eSafety limit fails to open during an overtemperature event\u003c\/li\u003e\n\u003cli\u003eBurned, corroded, or loose terminals on the control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Universal Replacement","offer_id":63021633372531,"sku":"51302031100-GEN","price":31.2,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048487731571,"sku":"51302031100","price":41.6,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-51302031100_eb95d6db-465f-43d9-9a40-883f24d544b0.jpg?v=1782961324"},{"product_id":"tempstar-safety-limit-thermostat-for-tnls2025hde-oem-51302031100-ships-today","title":"Tempstar Safety Limit Thermostat for TNLS2025HDE — OEM 51302031100 | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is the genuine OEM safety limit thermostat (part number 51302031100) for the Tempstar TNLS2025HDE. This safety thermostat is a temperature-sensing limit switch that protects the system by opening the control circuit if it detects an over-temperature condition — for example, restricted airflow or auxiliary\/strip-heat overheating. When the safety thermostat fails open, the unit will not energize heat; when it fails closed or drifts out of calibration, it no longer provides over-temperature protection. Replacing a faulty safety limit restores both reliable operation and the built-in protection the system depends on.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e51302031100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eThermostat, Safety (TSTAT Safety)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSafety Limit \/ High-Limit Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (ICP \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eOver-Temperature Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect-fit OEM replacement for the Tempstar TNLS2025HDE and related ICP \/ Heil \/ Comfortmaker units that use this safety limit thermostat. Match the part number on your existing switch to confirm fitment.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service panel to reach the safety thermostat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph the wiring and mounting position before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the leads and unfasten the old safety thermostat from its bracket\/surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new safety thermostat in the same location and reconnect the leads per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and verify the system energizes and cycles normally without nuisance trips.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNo heat or intermittent heat operation\u003c\/li\u003e\n\u003cli\u003eNuisance high-limit trips or short cycling\u003c\/li\u003e\n\u003cli\u003eOpen\/failed reading across the switch on a multimeter\u003c\/li\u003e\n\u003cli\u003eBurned or discolored terminals on the safety thermostat\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Universal Replacement","offer_id":63021633405299,"sku":"51302031100-GEN","price":34.08,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048487633267,"sku":"51302031100","price":45.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-51302031100.jpg?v=1782961319"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec800403axab-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC800403AXAB — 0130F00038","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00038 Auxiliary Limit Switch\u003c\/strong\u003e is a genuine OEM safety control engineered for the \u003cstrong\u003eACEC800403AXAB\u003c\/strong\u003e and compatible Goodman\/Amana gas furnaces. This light-blue auxiliary (rollout\/high-limit) switch monitors temperature at the burner assembly and interrupts the gas valve circuit if the unit overheats or flame rollout is detected — a critical safety function that protects the heat exchanger and your home.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary high-limit \/ rollout safety switch\u003c\/li\u003e\n\u003cli\u003eColor code: Light blue\u003c\/li\u003e\n\u003cli\u003eFunction: Normally-closed thermal cutout, manual or auto reset per spec\u003c\/li\u003e\n\u003cli\u003eFits: Goodman ACEC800403AXAB and select Goodman\/Amana furnace models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a factory-original Goodman component, calibrated to the exact trip temperature specified for your furnace. Generic universal limit switches may carry the wrong cutout rating, which can cause nuisance lockouts or, worse, fail to protect against true overheat conditions. For a safety-critical control, OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Easy\u003c\/strong\u003e — typically a two-wire spade-terminal swap with a single mounting screw. Always shut off power and gas before servicing. If you are not comfortable working near the burner assembly, consult a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032294736243,"sku":"0130F00038-GEN","price":14.57,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195113331,"sku":"0130F00038","price":19.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-0130F00038-1-1784922023076.jpg?v=1784922024"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec800603axaa-10123529","title":"Goodman Manual Reset Limit Switch for ACEC800603AXAA — 10123529","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10123529 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit \/ rollout safety control designed for the Goodman \u003cstrong\u003eACEC800603AXAA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. When excessive heat or a flame-rollout condition is detected, this switch opens the control circuit to shut down the burner, protecting the heat exchanger and your home. Because it is a \u003cem\u003emanual reset\u003c\/em\u003e device, it must be physically reset after a trip — which is exactly what makes it a reliable last line of defense against repeat fault conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual reset, normally-closed limit \/ rollout switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e High-temperature furnace safety cutoff\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e 1\/4 in. quick-connect spade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e 10123529\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman ACEC800603AXAA and select Goodman\/Amana gas furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e Our genuine OEM 10123529 is calibrated to the exact factory trip temperature for this furnace family, ensuring correct safety response and warranty compliance. Aftermarket generics may use a different trip point or looser tolerance, which can cause nuisance trips or — worse — fail to protect the heat exchanger. For a safety control, OEM is the recommended choice.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation difficulty:\u003c\/strong\u003e Easy (★★☆☆☆). Disconnect furnace power, remove the two mounting screws, transfer the spade connectors, and re-mount. Most DIYers complete this in 15–20 minutes. If the switch keeps tripping after replacement, have a technician inspect airflow and the heat exchanger.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032294900083,"sku":"10123529-GEN","price":24.33,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048276607347,"sku":"10123529","price":32.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-ACEC800603AXAA-1-1784495244846.jpg?v=1784495246"},{"product_id":"oem-goodman-pink-auto-limit-switch-for-acec800603axaa-0130f00036","title":"Goodman Pink Auto Limit Switch for ACEC800603AXAA — 0130F00036","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00036 Limit Switch (Pink)\u003c\/strong\u003e is a genuine OEM auto-reset high-limit safety control for the Goodman \u003cstrong\u003eACEC800603AXAA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. The pink color code identifies its specific factory trip temperature. This switch monitors heat-exchanger temperature and opens the burner circuit if the furnace overheats — typically due to restricted airflow — then automatically resets once temperatures return to a safe range.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auto-reset, normally-closed high-limit switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor code:\u003c\/strong\u003e Pink (denotes factory trip set point)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e High-temperature furnace safety cutoff\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e 1\/4 in. quick-connect spade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e 0130F00036\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman ACEC800603AXAA and select Goodman\/Amana gas furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The genuine OEM 0130F00036 is calibrated to the exact pink-coded trip temperature this furnace requires. Substituting a different color code or generic limit can cause nuisance shutdowns or inadequate overheat protection. Always match the factory color\/temperature spec — OEM is recommended for this safety control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation difficulty:\u003c\/strong\u003e Easy (★★☆☆☆). Cut furnace power, remove the two mounting screws, transfer the spade connectors, and re-mount the new switch. Most DIYers finish in 15 minutes. Frequent tripping after replacement usually points to a dirty filter, blocked vents, or a failing blower — address airflow before assuming the part is faulty.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032295031155,"sku":"0130F00036-GEN","price":19.45,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048292663667,"sku":"0130F00036","price":25.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-0130F00036-1-1784924818756.jpg?v=1784924819"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec800603axaa-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC800603AXAA — 0130F00038","description":"\u003ch2\u003eGoodman 0130F00038 Auxiliary Limit Switch\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00038\u003c\/strong\u003e is a genuine OEM auxiliary (high-limit) safety switch, identified by its light-blue housing, designed as a direct-fit replacement for the \u003cstrong\u003eACEC800603AXAA\u003c\/strong\u003e and compatible Goodman\/Amana furnace platforms. This switch monitors temperature in the heat-exchanger area and interrupts the burner circuit if it senses an over-temperature condition caused by restricted airflow, a dirty filter, or a failed blower — protecting the unit and your home from heat damage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary \/ secondary high-limit switch\u003c\/li\u003e\n\u003cli\u003eHousing Color: Light Blue (manufacturer trip-point code)\u003c\/li\u003e\n\u003cli\u003eFunction: Normally-closed thermal cutout, auto-reset\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (Amana \/ Daikin family)\u003c\/li\u003e\n\u003cli\u003eFitment: ACEC800603AXAA and related models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a \u003cstrong\u003egenuine OEM Goodman\u003c\/strong\u003e switch calibrated to the exact factory trip temperature. Generic limit switches are often sold by amperage rating only and may trip early (nuisance shutdowns) or late (insufficient protection) because the calibration differs from spec. For a critical safety control, OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eTwo-screw mount with quarter-inch spade terminals. Disconnect power, photograph the wiring, transfer the leads, and remount. Most homeowners complete the swap in under 15 minutes with a nut driver. If the switch keeps tripping after replacement, inspect airflow and the blower before assuming a part fault.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032295063923,"sku":"0130F00038-GEN","price":14.57,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195178867,"sku":"0130F00038","price":19.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-0130F00038-1-1784912259289.jpg?v=1784912260"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec800603axab-10123529","title":"Goodman Manual Reset Limit Switch for ACEC800603AXAB — 10123529","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e10123529 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control engineered for the Goodman\/Amana \u003cstrong\u003eACEC800603AXAB\u003c\/strong\u003e and compatible gas furnace platforms. This switch monitors heat-exchanger and plenum temperature and opens the gas\/ignition circuit if the unit overheats — a critical safety device that prevents heat-exchanger damage and unsafe operation. Unlike auto-reset limits, the manual-reset design requires you to physically press the button to restore operation, ensuring a technician inspects the root cause before the furnace runs again.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Manual reset high-limit \/ rollout safety switch\u003c\/li\u003e\n\u003cli\u003eFunction: Opens circuit on over-temperature, hand-reset button\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 10123529\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana (interchangeable)\u003c\/li\u003e\n\u003cli\u003eFits: ACEC800603AXAB and related furnace models\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4 in. quick-connect spade\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is the \u003cstrong\u003efactory OEM\u003c\/strong\u003e part — exact trip temperature, mounting bracket, and terminal orientation match your original. Universal\/generic limit switches often carry a different temperature rating or footprint, which can cause nuisance trips or unsafe high-limit response. For a safety control, OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eTwo spade terminals and two mounting screws. Always disconnect power before servicing. Most DIYers complete this in under 15 minutes; if the switch is tripping repeatedly, have the heat exchanger and airflow inspected by a licensed technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032295227763,"sku":"10123529-GEN","price":17.51,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048276672883,"sku":"10123529","price":23.34,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-10123529-1-1784924808602.jpg?v=1784924809"},{"product_id":"oem-goodman-pink-auto-reset-limit-switch-for-acec800603axab-0130f00036","title":"Goodman Pink Auto-Reset Limit Switch for ACEC800603AXAB — 0130F00036","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e0130F00036 Limit Switch (Pink)\u003c\/strong\u003e is a genuine OEM temperature-limit control for the Goodman\/Amana \u003cstrong\u003eACEC800603AXAB\u003c\/strong\u003e and compatible furnaces. The \u003cem\u003epink\u003c\/em\u003e color code identifies its specific trip temperature within Goodman's limit-switch family — using the matching color ensures the furnace shuts down at the correct over-temperature threshold. This switch opens the control circuit if plenum temperature exceeds its rating, protecting the heat exchanger and blower compartment.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Auto-reset high-limit switch (pink temperature code)\u003c\/li\u003e\n\u003cli\u003eFunction: Opens circuit on over-temperature; resets when cooled\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 0130F00036\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana (interchangeable)\u003c\/li\u003e\n\u003cli\u003eFits: ACEC800603AXAB and related furnace models\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4 in. quick-connect spade\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eLimit switches are \u003cstrong\u003etemperature-specific\u003c\/strong\u003e, and the pink code is the calibration that matches your furnace. A generic switch with a different rating can nuisance-trip or, worse, fail to protect against genuine overheating. Always replace with the same OEM color\/temperature spec.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eTwo spade terminals and two mounting screws; usually under 15 minutes. Disconnect power before servicing. Repeated tripping usually points to restricted airflow (dirty filter, blocked return) — diagnose the cause rather than bypassing the switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032295358835,"sku":"0130F00036-GEN","price":13.6,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048292696435,"sku":"0130F00036","price":18.13,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-0130F00036-1-1785180448130.jpg?v=1785180449"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec800603axab-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC800603AXAB — 0130F00038","description":"\u003ch2\u003eGoodman 0130F00038 Auxiliary Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman 0130F00038 is a genuine OEM auxiliary (high) limit switch engineered for the Goodman\/Amana ACEC800603AXAB and compatible units. This light-blue thermal switch monitors temperature inside the heat exchanger\/blower compartment and cuts power to the burners or heating element if it exceeds the factory-set trip point, protecting your equipment from overheating, cracked heat exchangers, and nuisance damage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary high-limit thermal switch\u003c\/li\u003e\n\u003cli\u003eColor code: Light Blue\u003c\/li\u003e\n\u003cli\u003eFunction: Automatic-reset over-temperature protection\u003c\/li\u003e\n\u003cli\u003eFits: Goodman ACEC800603AXAB and select Goodman\/Amana models\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eGeneric limit switches are often calibrated to a different trip temperature, which can cause short-cycling or fail to protect the heat exchanger. This genuine OEM 0130F00038 is matched to the exact factory trip point and terminal layout, ensuring correct, safe operation and preserving any equipment warranty.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1 of 5).\u003c\/strong\u003e Two screws and a pair of spade connectors. Always disconnect power before servicing. If you are unsure about thermal-safety components, consult a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032295391603,"sku":"0130F00038-GEN","price":18.48,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195244403,"sku":"0130F00038","price":24.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-0130F00038-1-1785178653183.jpg?v=1785178654"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec800603bxaa-10123529","title":"Goodman Manual Reset Limit Switch for ACEC800603BXAA — 10123529","description":"\u003ch2\u003eGoodman 10123529 Manual Reset Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman 10123529 is a genuine OEM manual reset high-limit \/ rollout safety switch engineered for the Goodman ACEC800603BXAA gas furnace and compatible models. This safety control trips and shuts off the burner circuit when it detects excessive heat or flame rollout, then requires a manual press of the reset button before the furnace can fire again — protecting the heat exchanger and your home from overheating.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Manual reset bimetal limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: High-limit \/ flame rollout safety cutoff\u003c\/li\u003e\n\u003cli\u003eMounting: OEM bracket-mount, direct replacement\u003c\/li\u003e\n\u003cli\u003eReset: Manual push-button\u003c\/li\u003e\n\u003cli\u003eFits: Goodman ACEC800603BXAA and compatible gas furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 10123529\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur genuine OEM 10123529 is calibrated to Goodman's exact trip temperature, ensuring the furnace's safety logic behaves as the manufacturer intended. Generic limit switches may trip early (nuisance lockouts) or late (unsafe). For a primary safety control, we strongly recommend the OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — typically a two-wire swap and one or two mounting screws. Always shut off power and gas before service. If the switch tripped, diagnose the underlying cause (blocked flue, dirty filter, failed blower) before resetting.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032295555443,"sku":"10123529-GEN","price":24.33,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048276738419,"sku":"10123529","price":32.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-10123529-1-1784917532972.jpg?v=1784917534"},{"product_id":"oem-goodman-auxiliary-limit-switch-light-blue-for-acec800603bxaa-0130f00038","title":"Goodman Auxiliary Limit Switch (Light Blue) for ACEC800603BXAA — 0130F00038","description":"\u003ch2\u003eGoodman 0130F00038 Auxiliary Limit Switch (Light Blue)\u003c\/h2\u003e\u003cp\u003eThe Goodman 0130F00038 is a genuine OEM auxiliary limit switch — identified by its light blue housing — for the Goodman ACEC800603BXAA gas furnace and compatible models. This secondary high-limit control provides an additional layer of overheat protection beyond the primary limit, interrupting the burner circuit if temperatures in its monitored zone exceed the safe threshold. The color coding corresponds to a specific trip temperature, so matching the OEM part is critical.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Auxiliary (secondary) bimetal high-limit switch\u003c\/li\u003e\n\u003cli\u003eColor code: Light blue (temperature-specific)\u003c\/li\u003e\n\u003cli\u003eFunction: Supplemental overheat safety cutoff\u003c\/li\u003e\n\u003cli\u003eMounting: OEM bracket \/ snap-disc, spade terminals\u003c\/li\u003e\n\u003cli\u003eFits: Goodman ACEC800603BXAA and compatible gas furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe light blue OEM 0130F00038 is factory-calibrated to Goodman's exact trip point. Because color denotes temperature rating, an incorrect generic substitute can trip too early or too late — causing nuisance lockouts or defeating the safety function. Always match the OEM color and part number.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — disconnect power, remove the spade terminals, unscrew the switch, and install the matching light blue replacement. If the original tripped, find and correct the cause of overheating before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032295784819,"sku":"0130F00038-GEN","price":19.45,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048193507699,"sku":"0130F00038","price":25.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-0130F00038-1-1785453285356.jpg?v=1785453286"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec800603bxab-10123529","title":"Goodman Manual Reset Limit Switch for ACEC800603BXAB — 10123529","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10123529\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003emanual reset high-limit switch\u003c\/strong\u003e for the \u003cstrong\u003eACEC800603BXAB\u003c\/strong\u003e gas\/electric package unit. This safety control opens the gas\/heating circuit if the heat exchanger or supply air exceeds a safe temperature, protecting against overheating from blocked airflow or blower failure. Because it is a manual-reset device, it must be physically reset after a trip — a deliberate design that flags a fault condition for the technician to investigate.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 10123529\u003c\/li\u003e\n\u003cli\u003eCategory: Limit Switch\u003c\/li\u003e\n\u003cli\u003eType: Manual reset high-limit \/ rollout safety switch\u003c\/li\u003e\n\u003cli\u003eCompatible Model: ACEC800603BXAB\u003c\/li\u003e\n\u003cli\u003eFunction: Overheat \/ over-temperature protection\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 10123529\u003c\/strong\u003e is calibrated to the exact factory trip temperature and mounting footprint. Generic switches with a different setpoint can nuisance-trip or, worse, fail to protect the unit. For a safety-critical control, only the OEM-rated switch should be used.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eA direct-swap component: disconnect power, transfer the wiring, and mount the new switch in the same location. Typically 15–20 minutes. After installing, identify and correct the original overheat cause (dirty filter, failed blower, blocked ducts) before returning the unit to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032296866163,"sku":"10123529-GEN","price":7.76,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048276771187,"sku":"10123529","price":10.34,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-10123529-1-1785180421139.jpg?v=1785180422"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec800603bxab-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC800603BXAB — 0130F00038","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00038 Auxiliary Limit Switch\u003c\/strong\u003e (light blue) is a genuine OEM thermal safety control for Goodman \u003cstrong\u003eACEC800603BXAB\u003c\/strong\u003e gas furnaces. This auxiliary high-limit switch monitors temperature and opens the control circuit if the furnace overheats — protecting the heat exchanger and surrounding components from damage and preventing unsafe operation. A tripped or failed limit switch will cause no-heat or intermittent shutdown faults.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 0130F00038\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Code:\u003c\/strong\u003e Light blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auxiliary high-limit \/ rollout safety switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Opens circuit on overtemperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Goodman ACEC800603BXAB gas furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 0130F00038\u003c\/strong\u003e is calibrated to the exact trip temperature specified for this furnace, with the correct light-blue color code for easy identification. Substituting a switch with a different trip point compromises safety — for a limit control, always match the OEM rating.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — usually two mounting screws and spade connectors. Disconnect power before service. Verify the trip rating matches the original before installing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032297226611,"sku":"0130F00038-GEN","price":18.48,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195342707,"sku":"0130F00038","price":24.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-0130F00038_5bb49526-c9cb-4865-94a9-386a74c320a8.jpg?v=1782946689"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec800804bxaa-10123529","title":"Goodman Manual Reset Limit Switch for ACEC800804BXAA — 10123529","description":"\u003ch2\u003eGoodman 10123529 Manual Reset Limit Switch\u003c\/h2\u003e\u003cp\u003eThe 10123529 is a genuine Goodman\/Amana manual-reset high-limit safety switch for the \u003cstrong\u003eACEC800804BXAA\u003c\/strong\u003e gas furnace. This is a critical safety control: it opens the ignition circuit and shuts down the burners if it senses an overheat or flame-rollout condition, protecting the heat exchanger and the home. Unlike an auto-reset limit, the manual-reset button requires a technician to physically reset it after a trip — a deliberate design that flags an underlying problem.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Manual-reset high-limit \/ rollout switch\u003c\/li\u003e\n\u003cli\u003eOEM part number: 10123529\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana\u003c\/li\u003e\n\u003cli\u003ePrimary fit: ACEC800804BXAA gas furnace\u003c\/li\u003e\n\u003cli\u003eFunction: Opens on overtemperature; requires manual reset button\u003c\/li\u003e\n\u003cli\u003eFactory-calibrated trip temperature — do not substitute by appearance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause the trip temperature must match Goodman's factory specification, the \u003cstrong\u003eOEM 10123529\u003c\/strong\u003e is the only recommended replacement. A generic limit with the wrong setpoint can either nuisance-trip or, worse, fail to protect the heat exchanger. For a primary safety device, always use genuine OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to moderate.\u003c\/strong\u003e The switch mounts with two screws and two push-on terminals — about 15–20 minutes. Disconnect power and gas before servicing. Important: if a limit switch has tripped, diagnose the root cause (blocked airflow, dirty filter, failed blower) before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032297390451,"sku":"10123529-GEN","price":22.38,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048276836723,"sku":"10123529","price":29.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-ACEC800804BXAA-1-1784495252178.jpg?v=1784495253"},{"product_id":"oem-goodman-limit-switch-pink-for-acec800804bxaa-0130f00036","title":"Goodman Limit Switch (Pink) for ACEC800804BXAA — 0130F00036","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00036 Limit Switch (Pink)\u003c\/strong\u003e is the genuine OEM high-temperature limit control for the \u003cstrong\u003eACEC800804BXAA\u003c\/strong\u003e gas furnace. The pink color code identifies its specific temperature trip rating. This normally-closed safety switch monitors heat-exchanger temperature and opens the burner\/gas circuit if the furnace overheats — protecting against blocked airflow, a failed blower, or a dirty filter. A nuisance-tripping or open limit switch is a frequent cause of no-heat and intermittent shutdown complaints.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 0130F00036\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e High-limit safety switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Code:\u003c\/strong\u003e Pink (rating-specific)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e ACEC800804BXAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Normally closed, auto-reset on overheat\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAlways use OEM (0130F00036)\u003c\/strong\u003e for safety controls. The pink rating is calibrated to this furnace's heat exchanger; a generic switch with the wrong trip point can either fail to protect the unit or trip constantly. Match the color code exactly.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — power off, remove two mounting screws, transfer the wire terminals, and remount. A 15-minute repair for a handy homeowner.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032297521523,"sku":"0130F00036-GEN","price":4.83,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048263991667,"sku":"0130F00036","price":6.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-0130F00036-1-1785456787728.jpg?v=1785456788"},{"product_id":"oem-goodman-aux-limit-switch-blue-for-acec800804bxaa-0130f00038","title":"Goodman Aux Limit Switch (Blue) for ACEC800804BXAA — 0130F00038","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00038 Auxiliary Limit Switch (Light Blue)\u003c\/strong\u003e is the genuine OEM secondary high-limit\/rollout safety control for the \u003cstrong\u003eACEC800804BXAA\u003c\/strong\u003e gas furnace. The light-blue color code denotes its distinct temperature trip rating, separate from the primary limit. This auxiliary switch adds a second layer of overheat protection — typically guarding the blower compartment or burner area — and opens the control circuit to shut off the burners if an unsafe temperature is reached.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 0130F00038\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Auxiliary \/ secondary limit switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Code:\u003c\/strong\u003e Light Blue (rating-specific)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e ACEC800804BXAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation:\u003c\/strong\u003e Normally closed safety cutoff\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause this is a \u003cstrong\u003elife-safety overheat control\u003c\/strong\u003e, only the genuine OEM \u003cstrong\u003e0130F00038\u003c\/strong\u003e with the correct light-blue trip rating should be used. Do not substitute the pink primary limit (0130F00036) — the two ratings are not interchangeable. Matching the color code is critical.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — disconnect power, unplug the spade terminals, remove the mounting screws, and install the replacement in the same orientation. About 15 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032297554291,"sku":"0130F00038-GEN","price":5.81,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048192033139,"sku":"0130F00038","price":7.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-0130F00038-1-1785178697479.jpg?v=1785178698"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec800804bxab-10123529","title":"Goodman Manual Reset Limit Switch for ACEC800804BXAB — 10123529","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10123529 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM safety control for the \u003cstrong\u003eGoodman ACEC800804BXAB\u003c\/strong\u003e and compatible gas furnaces. This high-limit \/ rollout switch monitors temperature and opens to shut off the burners if the furnace overheats or flame rollout occurs. Because it is a manual-reset device, it must be physically reset after a trip — a built-in safeguard that signals an underlying issue should be investigated. A failed switch can cause no-heat lockouts or fail to protect the system.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 10123529\u003c\/li\u003e\n\u003cli\u003ePart Type: High-limit \/ rollout safety switch\u003c\/li\u003e\n\u003cli\u003eReset Type: Manual reset\u003c\/li\u003e\n\u003cli\u003eCompatible Model: ACEC800804BXAB\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (Amana \/ Janitrol family compatible)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 10123529\u003c\/strong\u003e is calibrated to the exact trip temperature specified for this furnace. Substituting a generic switch with a different setpoint can compromise safety or cause nuisance trips. For correct, code-compliant protection, OEM is essential.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Disconnect power, unplug the two terminals, unscrew the switch, and mount the replacement. Always diagnose the cause of any trip. Typical time: 15–20 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032297914739,"sku":"10123529-GEN","price":18.48,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048276902259,"sku":"10123529","price":24.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-10123529-1-1785178686813.jpg?v=1785178688"},{"product_id":"oem-goodman-limit-switch-pink-for-acec800804bxab-0130f00036","title":"Goodman Limit Switch (Pink) for ACEC800804BXAB — 0130F00036","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00036 Limit Switch\u003c\/strong\u003e is the genuine OEM high-temperature safety control for the \u003cstrong\u003eACEC800804BXAB\u003c\/strong\u003e and compatible Goodman\/Amana furnaces. The \u003cstrong\u003epink color code\u003c\/strong\u003e identifies its specific factory trip temperature — limit switches are color-keyed so the correct cutout rating is always installed. This switch opens the control circuit and shuts down the burners if heat-exchanger temperature climbs too high (commonly from a dirty filter, blower fault, or blocked airflow), protecting the furnace from overheating damage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 0130F00036\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e High-limit safety switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Code:\u003c\/strong\u003e Pink (factory trip-temperature rating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e ACEC800804BXAB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (fits select Amana units)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Automatic-reset thermal limit\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e Because the trip point is color-coded, using the genuine pink 0130F00036 guarantees the exact factory cutout temperature. A generic switch with the wrong rating can either nuisance-trip or fail to protect the unit. The OEM part removes all guesswork on a safety-critical control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall Difficulty:\u003c\/strong\u003e Easy — two mounting screws and two push-on terminals, a 15–20 minute repair. Match the pink color code when replacing. Shut off gas and power first.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032298144115,"sku":"0130F00036-GEN","price":8.0,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048264024435,"sku":"0130F00036","price":19.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-0130F00036-1-1785512978599.jpg?v=1785512979"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec800804bxab-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC800804BXAB — 0130F00038","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00038 Auxiliary Limit Switch\u003c\/strong\u003e is the genuine OEM secondary safety control for the \u003cstrong\u003eACEC800804BXAB\u003c\/strong\u003e and compatible Goodman\/Amana furnaces. The \u003cstrong\u003elight-blue color code\u003c\/strong\u003e marks its specific factory trip temperature. As an auxiliary (secondary) limit, it backs up the main high-limit by monitoring a separate zone of the heat exchanger or blower compartment, opening the circuit to shut down the burners if a localized over-temperature condition develops.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 0130F00038\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Auxiliary \/ secondary limit switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Code:\u003c\/strong\u003e Light blue (factory trip-temperature rating)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e ACEC800804BXAB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (fits select Amana units)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Automatic-reset thermal limit\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The light-blue code corresponds to an exact cutout temperature — installing the genuine 0130F00038 ensures the auxiliary limit trips precisely as designed. Generic substitutes with mismatched ratings can cause nuisance shutdowns or miss a real fault. The OEM part keeps this safety layer accurate.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall Difficulty:\u003c\/strong\u003e Easy — two screws and two push-on terminals, about 15–20 minutes. Confirm the light-blue color code matches before installing. Always shut off gas and power before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032298176883,"sku":"0130F00038-GEN","price":16.53,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195408243,"sku":"0130F00038","price":22.04,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-0130F00038-1-1785456692966.jpg?v=1785456694"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec800805cxaa-10123529","title":"Goodman Manual Reset Limit Switch for ACEC800805CXAA — 10123529","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e10123529 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM safety control for \u003cstrong\u003eACEC800805CXAA\u003c\/strong\u003e gas furnaces. This high-limit\/rollout switch opens the circuit and shuts off the burners if it senses excessive temperature, protecting the heat exchanger and home from overheating. Because it's a manual-reset type, it must be physically reset after a trip — and a switch that trips repeatedly signals an underlying airflow or combustion problem to investigate.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Manual reset high-limit \/ rollout safety switch\u003c\/li\u003e\n\u003cli\u003eOEM part number: 10123529\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana\u003c\/li\u003e\n\u003cli\u003eCompatible model: ACEC800805CXAA gas furnace\u003c\/li\u003e\n\u003cli\u003eFunction: Opens on overtemp; manual reset button\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003egenuine OEM switch\u003c\/strong\u003e is calibrated to the furnace's exact trip temperature — a safety-critical spec. Generic switches with the wrong setpoint can nuisance-trip or fail to protect the unit. For any safety control, always use the OEM-rated part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Disconnect power, unplug the two terminals, unscrew the old switch, and mount the replacement. Roughly 15 minutes with a nut driver. Diagnose why it tripped before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032298340723,"sku":"10123529-GEN","price":7.76,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048276935027,"sku":"10123529","price":10.34,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-10123529-1-1785456682926.jpg?v=1785456684"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec800805cxaa-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC800805CXAA — 0130F00038","description":"\u003cp\u003eThe genuine OEM Goodman \u003cstrong\u003e0130F00038 Auxiliary Limit Switch\u003c\/strong\u003e (light-blue body) is a temperature-activated safety control for the Goodman \u003cstrong\u003eACEC800805CXAA\u003c\/strong\u003e furnace. It monitors a secondary location for abnormal heat and opens the circuit to shut down the burners if temperatures exceed the safe threshold — protecting the heat exchanger and surrounding components from damage caused by restricted airflow or blower failure.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003cli\u003eCategory: Auxiliary Limit \/ Rollout Safety Switch\u003c\/li\u003e\n\u003cli\u003eColor Code: Light Blue (trip-temperature identifier)\u003c\/li\u003e\n\u003cli\u003eCompatible Model: ACEC800805CXAA\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (genuine OEM)\u003c\/li\u003e\n\u003cli\u003eType: Automatic-reset thermal limit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eLimit switches are color-coded to a specific trip temperature. The OEM light-blue 0130F00038 guarantees the correct setpoint and terminal layout. A generic switch with the wrong trip point can either nuisance-trip or fail to protect the unit. Always match OEM on safety controls.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy.\u003c\/strong\u003e Cut power, remove two mounting screws, transfer the wiring, and reinstall. A 10–15 minute job for most DIYers.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032298471795,"sku":"0130F00038-GEN","price":5.81,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195473779,"sku":"0130F00038","price":7.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-0130F00038_9c6de24d-ead0-4f37-9cad-d89cb48e544e.jpg?v=1782946692"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec800805cxab-10123529","title":"Goodman Manual Reset Limit Switch for ACEC800805CXAB — 10123529","description":"\u003ch2\u003eGoodman 10123529 Manual Reset Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman 10123529 is a genuine OEM manual-reset high-limit switch designed for the \u003cstrong\u003eACEC800805CXAB\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This safety control monitors heat-exchanger and rollout temperatures and opens the circuit if the furnace overheats, shutting off the gas valve to prevent damage and hazardous conditions. As a manual-reset device, it must be pressed to reset after a trip — a deliberate design that forces inspection of the underlying cause (blocked airflow, failed blower, or flame rollout).\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 10123529\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual reset high-limit \/ rollout switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Normally closed, opens on overtemperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Manual push-button\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e ACEC800805CXAB and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 10123529\u003c\/strong\u003e is calibrated to the exact trip temperature specified for your furnace's heat exchanger. Generic switches may carry a different temperature rating; an incorrect trip point either nuisance-trips or, worse, fails to protect the unit. Because this is a safety control, we strongly recommend genuine OEM.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Easy.\u003c\/strong\u003e Two wire terminals and one or two mounting screws — about 15 minutes with power off. \u003cem\u003eImportant:\u003c\/em\u003e a tripped limit switch is a symptom, not a cause. Diagnose and correct the airflow or combustion problem before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032298635635,"sku":"10123529-GEN","price":16.53,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048277000563,"sku":"10123529","price":22.04,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-10123529-1-1785456748433.jpg?v=1785456749"},{"product_id":"oem-goodman-auxiliary-limit-switch-light-blue-for-acec800805cxab-0130f00038","title":"Goodman Auxiliary Limit Switch (Light Blue) for ACEC800805CXAB — 0130F00038","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00038 Auxiliary Limit Switch\u003c\/strong\u003e (identified by its light blue housing) is a genuine OEM high-limit safety control engineered for the \u003cstrong\u003eACEC800805CXAB\u003c\/strong\u003e air handler\/furnace platform and compatible Goodman and Amana equipment. This thermally activated switch monitors heat exchanger and cabinet temperatures, automatically interrupting the circuit if a dangerous overheat condition occurs to protect your equipment and home.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Auxiliary (secondary) high-limit switch\u003c\/li\u003e\n\u003cli\u003eColor code: Light Blue\u003c\/li\u003e\n\u003cli\u003eFunction: Automatic-reset thermal protection\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman ACEC800805CXAB and related models\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine OEM 0130F00038 carries the exact factory-calibrated trip temperature for your unit, ensuring correct safety response and preserving manufacturer compatibility. Generic replacements may use approximate trip points that cause nuisance lockouts or fail to protect the heat exchanger. For a critical safety component, OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e A simple two-wire swap that most homeowners can complete in under 15 minutes. Always disconnect power at the breaker before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032298963315,"sku":"0130F00038-GEN","price":18.48,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048193540467,"sku":"0130F00038","price":24.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-0130F00038_d0bc7f58-1cdf-47cf-b9ef-893051bd4ff3.jpg?v=1782946629"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec801005cxaa-10123529","title":"Goodman Manual Reset Limit Switch for ACEC801005CXAA — 10123529","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10123529 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control built for the \u003cstrong\u003eACEC801005CXAA\u003c\/strong\u003e and compatible Goodman\/Amana furnaces. This manual-reset switch trips and locks open on an overtemperature or flame-rollout event, shutting down the burner until a technician confirms the cause and presses the reset button — a deliberate design that prevents a dangerous condition from cycling unnoticed.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Manual-reset high-limit \/ rollout switch\u003c\/li\u003e\n\u003cli\u003eReset: Manual push-button\u003c\/li\u003e\n\u003cli\u003eFunction: Locks out burner on overtemperature\/rollout\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 10123529\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman ACEC801005CXAA and related models\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM 10123529 is factory-calibrated to your furnace's exact trip temperature, ensuring it activates at the correct threshold. Generic switches with approximate set points can trip prematurely or, worse, too late. Because this is a critical safety lockout, genuine OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e A straightforward two-wire replacement completed in about 15 minutes. Always disconnect power at the breaker before servicing, and diagnose the root cause of any rollout before resetting.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032299094387,"sku":"10123529-GEN","price":12.5,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048277066099,"sku":"10123529","price":28.54,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-10123529-1-1785512874791.jpg?v=1785512875"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec801005cxaa-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC801005CXAA — 0130F00038","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e0130F00038 Auxiliary Limit Switch\u003c\/strong\u003e (identified by its light-blue body) is a genuine OEM thermal safety control for the \u003cstrong\u003eACEC801005CXAA\u003c\/strong\u003e and other compatible Goodman\/Amana gas furnaces. This normally-closed snap-disc switch monitors temperature at a critical location and opens the control circuit if the furnace overheats, shutting down the burners to prevent heat-exchanger damage. The color code corresponds to the factory trip temperature for this position.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFunction: Auxiliary \/ secondary high-limit safety switch\u003c\/li\u003e\n\u003cli\u003eOEM part number: 0130F00038\u003c\/li\u003e\n\u003cli\u003eColor code: Light blue (factory trip-temperature identifier)\u003c\/li\u003e\n\u003cli\u003eAction: Normally closed, opens on over-temperature, auto-reset\u003c\/li\u003e\n\u003cli\u003eFits: Goodman ACEC801005CXAA and compatible models\u003c\/li\u003e\n\u003cli\u003eTerminals: OEM spade connectors for direct wiring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe trip temperature on a limit switch is safety-critical. OEM 0130F00038 is calibrated to the exact factory open\/close setpoint for this model and position; the light-blue code ensures you install the correct rating. Generic switches with different setpoints can either nuisance-trip or, worse, fail to protect the heat exchanger. Always match the OEM color\/rating.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy.\u003c\/strong\u003e Disconnect power, unplug the two wires, remove the mounting screws, and install the new switch in the same orientation. Confirm continuity at room temperature after install. Never bypass a limit switch — replace with the correct OEM rating.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032299225459,"sku":"0130F00038-GEN","price":5.81,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195539315,"sku":"0130F00038","price":7.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-0130F00038_a01a9fcb-b617-49c3-9968-10c3372ce28a.jpg?v=1782946694"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec801005cxab-10123529","title":"Goodman Manual Reset Limit Switch for ACEC801005CXAB — 10123529","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10123529 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM high-temperature safety control for the \u003cstrong\u003eACEC801005CXAB\u003c\/strong\u003e gas furnace. It opens the control circuit and shuts off the burners if it detects an over-temperature or flame-rollout condition, then requires a manual press to reset — by design, so a technician inspects the cause before the furnace fires again. A tripping or failed switch is a frequent cause of a furnace that ignites then immediately shuts down.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 10123529\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual reset thermal limit \/ rollout switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Normally closed, opens on over-temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Manual push-button\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Goodman ACEC801005CXAB and related furnace models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOEM 10123529 switches are calibrated to the exact trip temperature specified for this furnace and use matching terminal and bracket dimensions. A generic switch with the wrong trip point either nuisance-trips or — worse — fails to protect against a genuine over-temp event. For a safety device, always choose OEM.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Disconnect power, unplug the two spade terminals, remove two mounting screws, and install the replacement. \u003cstrong\u003eImportant:\u003c\/strong\u003e a repeatedly tripping limit indicates an underlying problem (dirty filter, blocked vent, failing blower) — diagnose the root cause, don't just reset.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032299356531,"sku":"10123529-GEN","price":11.66,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048277098867,"sku":"10123529","price":15.54,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-10123529_69df3086-b7e7-4087-925f-d8c4ffcad99e.jpg?v=1782949370"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec801005cxab-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC801005CXAB — 0130F00038","description":"\u003ch2\u003eGoodman 0130F00038 Auxiliary Limit Switch (Light Blue)\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e0130F00038 Auxiliary Limit Switch\u003c\/strong\u003e, identified by its light-blue housing, is the genuine OEM high-temperature safety control for the \u003cstrong\u003eACEC801005CXAB\u003c\/strong\u003e and related Goodman\/Amana furnaces. This normally-closed thermal switch monitors temperature in the blower or burner compartment and opens the circuit if heat exceeds a safe threshold — protecting the heat exchanger and surrounding components from overheating caused by restricted airflow, dirty filters, or blower failure.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003cli\u003eColor Code: Light Blue\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary high-limit, normally-closed thermal cutout\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (also fits Amana \/ Janitrol)\u003c\/li\u003e\n\u003cli\u003ePrimary Fit: ACEC801005CXAB gas furnace\u003c\/li\u003e\n\u003cli\u003eReset: Automatic on temperature drop\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe light-blue color denotes a specific trip and reset temperature calibration. The \u003cstrong\u003eOEM 0130F00038\u003c\/strong\u003e guarantees that exact set point — critical for a safety device. Generic switches with a different temperature rating can trip prematurely (nuisance shutdowns) or fail to trip when needed. Always match the OEM color\/temperature spec on limit controls.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Disconnect power, remove the two mounting screws, transfer the wire terminals one at a time, and reinstall. Roughly 10–15 minutes with basic hand tools.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032299487603,"sku":"0130F00038-GEN","price":5.81,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195572083,"sku":"0130F00038","price":7.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-0130F00038_c5bd31f5-b613-408b-958a-1ff287164ee5.jpg?v=1782946696"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec960403bnaa-10123533","title":"Goodman Manual Reset Limit Switch for ACEC960403BNAA — 10123533","description":"\u003ch2\u003eGoodman 10123533 Manual Reset Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman 10123533 is a genuine OEM manual reset limit switch (rollout\/high-limit safety control) engineered for Goodman and Amana gas furnaces, including the \u003cstrong\u003eACEC960403BNAA\u003c\/strong\u003e. This switch monitors for abnormal temperature or flame rollout conditions in the burner compartment and trips to shut off the gas valve, protecting the heat exchanger and your home. After a fault, it requires a manual reset (press the button) once the underlying issue is corrected — a deliberate safety feature, not a defect.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Manual reset rollout \/ flame rollout limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: Opens on high temperature, manual reset required\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4\" quick-connect spade\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 10123533\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (also fits select Amana \/ Daikin units)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a \u003cstrong\u003efactory OEM part\u003c\/strong\u003e calibrated to the exact trip temperature specified by Goodman engineering. Generic aftermarket switches may carry a slightly lower price but can use looser temperature tolerances, risking nuisance trips or — worse — failure to trip. For a safety-critical control, we recommend OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5)\u003c\/strong\u003e — Two spade connectors and two mounting screws. Always disconnect power and shut off the gas before servicing. If you are unsure why the original switch tripped, have a licensed HVAC technician diagnose the root cause first.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032299618675,"sku":"10123533-GEN","price":18.48,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048277164403,"sku":"10123533","price":24.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-ACEC960403BNAA-1-1784494922740.jpg?v=1784494924"},{"product_id":"oem-goodman-m4-primary-limit-switch-for-acec960403bnaa-20162906","title":"Goodman M4 Primary Limit Switch for ACEC960403BNAA — 20162906","description":"\u003ch2\u003eGoodman 20162906 M4 Primary Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman 20162906 is a genuine OEM M4 primary limit switch for Goodman and Amana gas furnaces, including the \u003cstrong\u003eACEC960403BNAA\u003c\/strong\u003e. Mounted on the heat exchanger or near the supply plenum, this primary high-limit control continuously monitors supply-air temperature. If airflow is restricted (dirty filter, blower failure, closed registers) and temperatures climb past the rated setpoint, the switch opens to shut off the gas valve and prevent heat exchanger overheating.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary auto-reset high-limit switch (M4 series)\u003c\/li\u003e\n\u003cli\u003eFunction: Opens on high supply-air temperature, auto-resets on cooldown\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4\" quick-connect spade\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162906\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana \/ Daikin family\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe M4 limit is factory-calibrated to a specific trip temperature and mounting bracket profile. This \u003cstrong\u003eOEM switch\u003c\/strong\u003e guarantees the correct setpoint and fitment. Generic substitutes risk nuisance lockouts or improper protection. For a primary safety device, OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5)\u003c\/strong\u003e — Two spade terminals and two screws. Disconnect power and gas before servicing. If the limit trips repeatedly, diagnose airflow (filter, blower, ductwork) before assuming the switch has failed.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032299684211,"sku":"20162906-GEN","price":19.45,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048276050291,"sku":"20162906","price":25.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-20162906-1-1785180513428.jpg?v=1785180514"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec960403bnaa-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC960403BNAA — 0130F00038","description":"\u003ch2\u003eGoodman 0130F00038 Auxiliary Limit Switch (Light Blue)\u003c\/h2\u003e\u003cp\u003eThe Goodman 0130F00038 is a genuine OEM auxiliary limit switch — identifiable by its light blue marking — for Goodman and Amana gas furnaces, including the \u003cstrong\u003eACEC960403BNAA\u003c\/strong\u003e. This secondary high-limit control provides backup overheat protection, typically mounted on the blower deck or near the heat exchanger. If the primary limit fails to respond and temperatures rise dangerously, the auxiliary switch opens to de-energize the gas valve, adding a critical second layer of safety.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Auxiliary \/ secondary auto-reset limit switch\u003c\/li\u003e\n\u003cli\u003eColor code: Light blue (denotes trip-temperature rating)\u003c\/li\u003e\n\u003cli\u003eFunction: Backup high-temperature cutout for the gas valve\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4\" quick-connect spade\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe light-blue color code corresponds to a specific factory trip temperature. Installing the wrong rating compromises safety protection. This \u003cstrong\u003eOEM switch\u003c\/strong\u003e guarantees the correct setpoint and physical fit. We do not recommend generic substitutes for any furnace safety limit.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5)\u003c\/strong\u003e — Two spade connectors and a screw-mount bracket. Always cut power and gas before servicing. Match the replacement's color\/temperature rating to the original, and investigate any repeated trips for an airflow or blower fault.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032299749747,"sku":"0130F00038-GEN","price":14.57,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195637619,"sku":"0130F00038","price":19.43,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-0130F00038_1209a3cf-e2a5-42af-ab06-1f017f347b35.jpg?v=1782946698"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec960403bnab-10123533","title":"Goodman Manual Reset Limit Switch for ACEC960403BNAB — 10123533","description":"\u003ch2\u003eGoodman 10123533 Manual Reset Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman 10123533 is a genuine OEM manual-reset high-limit safety switch for the ACEC960403BNAB furnace. This control continuously monitors temperature near the burner\/heat-exchanger area and opens the circuit if it senses an unsafe overheat condition — typically caused by restricted airflow, a dirty filter, or a failing blower. Because it is a manual-reset design, it must be physically reset after a trip, alerting the homeowner that a real fault occurred rather than silently cycling.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 10123533\u003c\/li\u003e\n\u003cli\u003eType: Manual reset thermal limit \/ rollout switch\u003c\/li\u003e\n\u003cli\u003eFunction: Normally closed, opens on overtemperature\u003c\/li\u003e\n\u003cli\u003eReset: Manual push-button\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman \/ Amana ACEC960403BNAB\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a flame-safety component. The genuine Goodman 10123533 is calibrated to the exact trip temperature specified for this furnace and uses the correct mounting and terminal layout. Generic substitutes with different trip points can cause nuisance lockouts or, worse, fail to protect the heat exchanger. Always use OEM for safety controls.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e Requires shutting off power and gas, removing the burner-compartment panel, transferring two spade connectors, and remounting with the original screws. Best handled by a confident DIYer or HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032300208499,"sku":"10123533-GEN","price":16.53,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048277229939,"sku":"10123533","price":22.04,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-ACEC960403BNAB-1-1784494985182.jpg?v=1784494986"},{"product_id":"oem-goodman-m4-primary-limit-switch-for-acec960403bnab-20162906","title":"Goodman M4 Primary Limit Switch for ACEC960403BNAB — 20162906","description":"\u003ch2\u003eGoodman 20162906 M4 Primary Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman 20162906 is a genuine OEM M4 primary limit switch for the ACEC960403BNAB furnace. Mounted on the heat-exchanger\/blower bulkhead, this auto-resetting control senses supply-air temperature and opens the gas-valve circuit if airflow is inadequate and the cabinet overheats. It is the furnace's primary thermal safety, protecting the heat exchanger from cracking and shutting down the burners during airflow faults such as a clogged filter or stalled blower.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 20162906\u003c\/li\u003e\n\u003cli\u003eType: M4 primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: Normally closed, opens on overtemperature\u003c\/li\u003e\n\u003cli\u003eReset: Automatic (recloses when temperature normalizes)\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman \/ Amana ACEC960403BNAB\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe primary limit is a calibrated safety device. The genuine Goodman 20162906 has the correct trip temperature, disc location, and mounting bracket for this model. Generic limits with the wrong setpoint cause short cycling or fail to protect the unit. For any safety control, OEM is the right choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e Disconnect power, remove the blower-compartment panel, unfasten the two mounting screws, transfer the wire connectors, and remount. Verify proper furnace operation and temperature rise after replacement.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032300274035,"sku":"20162906-GEN","price":16.53,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048276115827,"sku":"20162906","price":22.04,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-20162906-1-1785456847308.jpg?v=1785456848"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec960403bnab-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC960403BNAB — 0130F00038","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e0130F00038 Auxiliary Limit Switch\u003c\/strong\u003e is a genuine OEM high-temperature safety control engineered for the Goodman \u003cstrong\u003eACEC960403BNAB\u003c\/strong\u003e and compatible furnace\/air handler platforms. This light-blue-coded limit interrupts the burner or heating circuit if the heat-exchanger or plenum temperature rises above its rated setpoint, protecting the equipment and the home from overheating. A failed or open auxiliary limit is one of the most common causes of nuisance lockouts and short cycling.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Auxiliary high-limit safety switch\u003c\/li\u003e\n\u003cli\u003eColor code: Light blue\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (genuine OEM)\u003c\/li\u003e\n\u003cli\u003eFits: ACEC960403BNAB and compatible models\u003c\/li\u003e\n\u003cli\u003eFunction: Manual\/auto-reset thermal cutoff\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine OEM 0130F00038 is calibrated to the exact trip temperature Goodman specifies for this furnace, ensuring correct safety operation. Aftermarket limits often carry generic setpoints that can trip early (false lockouts) or late (reduced protection). For a safety control, we recommend OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Disconnect power, remove the two mounting screws, transfer the spade connectors, and reinstall. Most homeowners complete this in under 15 minutes. Always cut power at the breaker first.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032300339571,"sku":"0130F00038-GEN","price":17.51,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195703155,"sku":"0130F00038","price":23.34,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-0130F00038_0e04eaaa-6efe-4230-ae96-9361ecbcc87c.jpg?v=1782946700"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec960603bnaa-10123538","title":"Goodman Manual Reset Limit Switch for ACEC960603BNAA — 10123538","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10123538 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM safety control for the Goodman \u003cstrong\u003eACEC960603BNAA\u003c\/strong\u003e gas furnace. This normally-closed thermal switch opens to shut off the gas valve if it senses an over-temperature or flame-rollout condition, and requires a manual reset before the furnace can restart — a deliberate safety design that prevents the unit from re-firing into a fault. If your furnace locks out and will not relight, a tripped or failed manual reset limit is a leading cause.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 10123538\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Manual Reset Limit \/ Rollout Safety Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Normally closed; opens on over-temperature, manual reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (also fits select Amana builds)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e ACEC960603BNAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit:\u003c\/strong\u003e Direct OEM replacement — factory trip point and bracket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eLimit switches are calibrated to a specific trip temperature. A generic switch with the wrong setpoint can nuisance-trip or, worse, fail to protect the heat exchanger. The genuine Goodman 10123538 carries the factory-specified open temperature and mounting footprint for the ACEC960603BNAA, so it protects exactly as designed. For a safety control, always choose OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e Requires removing two mounting screws and transferring the spade wire connectors. Shut off all power and gas before servicing. If the switch trips again after reset, do not bypass it — have the root cause (blocked vent, dirty filter, failing blower) diagnosed by a qualified technician.\u003c\/p\u003e\u003cp\u003eGenuine OEM safety part. Confirm your full model and serial before ordering.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032300568947,"sku":"10123538-GEN","price":24.33,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048277295475,"sku":"10123538","price":32.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-ACEC960603BNAA-1-1784494992603.jpg?v=1784494994"},{"product_id":"oem-goodman-m4-primary-limit-switch-for-acec960603bnaa-20162906","title":"Goodman M4 Primary Limit Switch for ACEC960603BNAA — 20162906","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162906 M4 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control for the Goodman \u003cstrong\u003eACEC960603BNAA\u003c\/strong\u003e gas furnace. Mounted on the heat-exchanger \/ blower deck, this auto-reset thermal switch monitors supply-air temperature and opens to interrupt the gas valve if the furnace overheats — typically from restricted airflow, a dirty filter, or a failing blower. It closes again once temperatures return to normal, allowing the furnace to resume. A failed primary limit causes short cycling, no heat, or burners that fire then drop out.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 20162906\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e M4 Primary High-Limit Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Auto-reset; opens on over-temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (also fits select Amana builds)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e ACEC960603BNAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit:\u003c\/strong\u003e Direct OEM replacement — factory setpoint and mounting\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe primary limit is calibrated to a specific open\/close temperature tied to the furnace's airflow and heat-exchanger design. A generic limit with the wrong trip point can nuisance-trip or fail to protect the heat exchanger. The genuine Goodman 20162906 carries the correct factory setpoint and bracket for the ACEC960603BNAA, restoring proper safety operation. For a safety control, OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e Remove two mounting screws, transfer the spade connectors, and seat the new switch against the deck. Shut off power and gas before servicing. If the limit keeps tripping after replacement, diagnose the airflow restriction rather than bypassing the switch.\u003c\/p\u003e\u003cp\u003eGenuine OEM safety part. Verify your full model and serial number before ordering.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032300634483,"sku":"20162906-GEN","price":29.21,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048276148595,"sku":"20162906","price":38.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-20162906_e5e963b1-efe6-47c1-a696-266ec8ee49d7.jpg?v=1782949337"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec960603bnaa-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC960603BNAA — 0130F00038","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00038 Auxiliary Limit Switch (Light Blue)\u003c\/strong\u003e is a genuine OEM safety component for the \u003cstrong\u003eACEC960603BNAA\u003c\/strong\u003e furnace and compatible Goodman\/Amana models. This normally-closed thermal switch opens the control circuit if the cabinet or blower compartment exceeds a safe temperature, shutting off the burners to prevent overheating. A tripped or failed auxiliary limit is a common cause of no-heat and intermittent shutdown faults.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary high-limit thermal switch\u003c\/li\u003e\n\u003cli\u003eColor Code: Light Blue\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman\u003c\/li\u003e\n\u003cli\u003eFits Model: ACEC960603BNAA\u003c\/li\u003e\n\u003cli\u003eAction: Normally closed, opens on over-temperature (auto-reset)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM\u003c\/strong\u003e switch is calibrated to the exact trip and reset temperatures the furnace was engineered for — critical for a safety device. Generic substitutes with the wrong temperature rating can either nuisance-trip or, worse, fail to open when needed. Match the light-blue color code to guarantee the correct calibration.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — two-screw mount with quick-connect terminals. Cut power before servicing. A quick 10–15 minute replacement; verify the cause of any prior trip (restricted airflow, dirty filter, failed blower) to avoid repeat failures.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032300732787,"sku":"0130F00038-GEN","price":5.81,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195768691,"sku":"0130F00038","price":7.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-0130F00038_23856ad4-7a22-47ea-8904-5908d33d8a02.jpg?v=1782946702"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec960603bnab-10123538","title":"Goodman Manual Reset Limit Switch for ACEC960603BNAB — 10123538","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e10123538 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM high-temperature safety control for the \u003cstrong\u003eGoodman ACEC960603BNAB\u003c\/strong\u003e. It monitors heat-exchanger\/burner temperature and opens the circuit to shut down the burner if the unit overheats — a critical flame-rollout and over-temp protection. Unlike auto-reset limits, this manual-reset switch requires a physical button press to restore operation, ensuring a technician inspects the cause before the furnace fires again.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 10123538\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e ACEC960603BNAB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual reset high-limit \/ rollout switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Over-temperature burner shutoff safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Direct OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e Safety limits must trip at the factory-specified temperature. The OEM 10123538 is calibrated to Goodman's exact trip point for the ACEC960603 heat exchanger. A generic switch with the wrong setpoint can nuisance-trip or, worse, fail to protect against a genuine overheat. Always use the OEM-spec part for safety controls.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall Difficulty:\u003c\/strong\u003e Easy–Moderate (2\/5). Disconnect power and gas, unplug the two terminals, remove the mounting screws, install the new switch, and reconnect. About 15–20 minutes. If the original tripped, diagnose the airflow\/heat-exchanger cause before returning to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032301420915,"sku":"10123538-GEN","price":24.33,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048277328243,"sku":"10123538","price":32.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-ACEC960603BNAB-1-1784495000172.jpg?v=1784495001"},{"product_id":"oem-goodman-primary-limit-switch-for-acec960603bnab-20162906","title":"Goodman Primary Limit Switch for ACEC960603BNAB — 20162906","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162906 M4 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control engineered for the \u003cstrong\u003eACEC960603BNAB\u003c\/strong\u003e gas furnace and matching Goodman\/Amana 96% AFUE heating platforms. This normally-closed thermal switch monitors heat-exchanger temperature and opens the gas valve and ignition circuit if the unit overheats, protecting the appliance and your home from unsafe operating conditions.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary (high) limit switch, M4 series\u003c\/li\u003e\n\u003cli\u003eAction: Automatic-reset, normally closed\u003c\/li\u003e\n\u003cli\u003eFit: ACEC960603BNAB and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eFunction: Heat-exchanger over-temperature safety cutout\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162906\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eChoosing the OEM 20162906 guarantees the exact trip temperature, mounting bracket, and terminal spacing the control board expects. Aftermarket limit switches with the wrong set point can cause nuisance lockouts or, worse, fail to protect the heat exchanger. For a safety-critical part, OEM is the recommended choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e A two-screw, two-wire replacement that most homeowners can complete in under 15 minutes. Always disconnect power and gas before servicing, and confirm the part number matches your old switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032301617523,"sku":"20162906-GEN","price":9.7,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048294793587,"sku":"20162906","price":12.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-20162906_3dff3bb4-398b-4698-a488-f31ee8260eff.jpg?v=1782950051"},{"product_id":"oem-goodman-auxiliary-limit-switch-for-acec960603bnab-0130f00038","title":"Goodman Auxiliary Limit Switch for ACEC960603BNAB — 0130F00038","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00038 Auxiliary Limit Switch (Light Blue)\u003c\/strong\u003e is a genuine OEM secondary over-temperature safety control for the \u003cstrong\u003eACEC960603BNAB\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana units. Mounted near the blower or burner area, this auto-reset switch opens the control circuit if airflow is lost or temperatures climb beyond the safe range, backing up the primary limit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Auxiliary \/ secondary limit switch\u003c\/li\u003e\n\u003cli\u003eColor code: Light blue (set-point identifier)\u003c\/li\u003e\n\u003cli\u003eAction: Normally closed, trips on over-temperature\u003c\/li\u003e\n\u003cli\u003eFit: ACEC960603BNAB and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe light-blue color denotes a specific trip temperature. Installing a generic switch with a different set point defeats the layered safety design of the furnace. The OEM 0130F00038 guarantees the correct rating, bracket, and terminals for a true plug-in replacement.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Two screws and two wires, usually under 15 minutes. De-energize the furnace first and verify the color\/set point matches the original.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032301781363,"sku":"0130F00038-GEN","price":5.81,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048195801459,"sku":"0130F00038","price":7.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-0130F00038_bfbf2010-7b54-4602-b3f2-3c11db7f4a28.jpg?v=1782946704"},{"product_id":"oem-goodman-manual-reset-limit-switch-for-acec960803bnaa-10123533","title":"Goodman Manual Reset Limit Switch for ACEC960803BNAA — 10123533","description":"\u003cp\u003eThis genuine OEM Goodman \u003cstrong\u003e10123533\u003c\/strong\u003e manual reset limit switch is a direct-fit safety control for the Goodman \u003cstrong\u003eACEC960803BNAA\u003c\/strong\u003e system. As a high-limit \/ rollout safety device, it interrupts the circuit when it senses excessive temperature — protecting the heat exchanger and surrounding components from overheating. Because it is a manual reset design, it must be pressed to reset after a trip, prompting the homeowner or technician to investigate the underlying cause.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 10123533\u003c\/li\u003e\n\u003cli\u003eType: Manual reset limit \/ rollout safety switch\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman\u003c\/li\u003e\n\u003cli\u003eFits: ACEC960803BNAA and compatible Goodman units\u003c\/li\u003e\n\u003cli\u003eFunction: Opens circuit on overtemperature; requires manual reset\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis OEM switch is calibrated to the exact trip temperature specified by Goodman for your model. Substituting a generic limit switch with a different temperature rating or mounting style can cause nuisance trips or, worse, fail to protect the equipment. For safety-critical components like this, the genuine 10123533 is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e Requires disconnecting power, removing the access panel, and transferring the wire leads to the new switch. Because this is a safety control, professional installation is recommended if you are unsure.\u003c\/p\u003e\u003cp\u003eAlways disconnect power before service and confirm the part number against your unit's parts diagram. Questions? Contact info@nationalhvacparts.com.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032302502259,"sku":"10123533-GEN","price":24.33,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048277393779,"sku":"10123533","price":32.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-ACEC960803BNAA-1-1784495177505.jpg?v=1784495178"},{"product_id":"oem-goodman-primary-limit-temperature-control-for-acec960803bnaa-20162904","title":"Goodman Primary Limit Temperature Control for ACEC960803BNAA — 20162904","description":"\u003ch2\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e20162904\u003c\/strong\u003e is the primary high-limit temperature control for the \u003cstrong\u003eACEC960803BNAA\u003c\/strong\u003e gas furnace. This safety switch continuously monitors heat-exchanger and plenum temperature and shuts off the gas valve if the furnace overheats — protecting against blocked airflow, dirty filters, or blower failure. When a furnace heats briefly then shuts down (limit trip), an open or failed primary limit is a common cause.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit temperature control (auto-reset)\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162904\u003c\/li\u003e\n\u003cli\u003eFunction: Overheat safety cutoff for gas valve\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman ACEC960803BNAA \u0026amp; related Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eFactory-calibrated trip and reset temperatures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine 20162904 is calibrated to this furnace's exact cutout temperature and mounting footprint. Generic limits with mismatched trip points either nuisance-trip during normal operation or fail to protect the heat exchanger. OEM ensures correct calibration and a direct bolt-in fit.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy–Moderate (2\/5).\u003c\/strong\u003e Disconnect power, unplug the two spade terminals, remove the mounting screws, and reverse for the new control. Confirm filter and blower airflow are clear so the new limit isn't tripped by an underlying restriction.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032303059315,"sku":"20162904-GEN","price":35.06,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048295186803,"sku":"20162904","price":46.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-20162904-1-1784922035234.jpg?v=1784922036"},{"product_id":"oem-goodman-auxiliary-limit-switch-light-blue-for-acec960803bnaa-0130f00038","title":"Goodman Auxiliary Limit Switch (Light Blue) for ACEC960803BNAA — 0130F00038","description":"\u003ch2\u003eGoodman 0130F00038 Auxiliary Limit Switch — Light Blue\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e0130F00038\u003c\/strong\u003e is the light-blue auxiliary (secondary) limit switch for the \u003cstrong\u003eACEC960803BNAA\u003c\/strong\u003e gas furnace. Color-coded by trip temperature, this auxiliary control provides backup overheat protection — commonly mounted near the blower deck or burner box to catch abnormal heat conditions the primary limit might miss. The light-blue band identifies its specific factory temperature rating, so matching color and part number is essential.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Auxiliary \/ secondary limit switch\u003c\/li\u003e\n\u003cli\u003eColor code: Light Blue (temperature-specific)\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 0130F00038\u003c\/li\u003e\n\u003cli\u003eFunction: Backup overheat safety cutoff\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman ACEC960803BNAA \u0026amp; related Goodman\/Amana furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eAuxiliary limits are calibrated to a precise cutout temperature indicated by their color band. Installing the wrong color or a generic equivalent changes the trip point and can either disable protection or cause nuisance shutdowns. The genuine light-blue 0130F00038 guarantees the correct calibration and bracket fit.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Cut power, disconnect the spade terminals, remove the mounting screws, and install the matching light-blue replacement. Verify the color band matches the original before powering up.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032303485299,"sku":"0130F00038-GEN","price":5.81,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048193606003,"sku":"0130F00038","price":7.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-0130F00038_d80b6f81-fffa-476d-990c-a00f44955161.jpg?v=1782946631"},{"product_id":"oem-goodman-manual-reset-rollout-limit-switch-for-acec960803bnab-10123533","title":"Goodman Manual Reset Rollout Limit Switch for ACEC960803BNAB — 10123533","description":"\u003cp\u003eThe genuine Goodman \u003cstrong\u003e10123533 Manual Reset Rollout Limit Switch\u003c\/strong\u003e is a factory safety control engineered for the Goodman\/Amana \u003cstrong\u003eACEC960803BNAB\u003c\/strong\u003e 96% AFUE gas furnace and compatible models. This switch monitors the burner box for flame rollout and opens the ignition circuit if it senses dangerous heat, shutting the furnace down to prevent damage and protect your home. After a fault is cleared, the switch is manually reset with the push of a button.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Manual reset rollout\/limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: Flame rollout \/ over-temperature protection\u003c\/li\u003e\n\u003cli\u003eReset: Manual (push-button)\u003c\/li\u003e\n\u003cli\u003eFits: ACEC960803BNAB and compatible Goodman\/Amana gas furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 10123533\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a true Goodman OEM part with the exact trip temperature and circuit rating specified by the factory. Generic substitutes may carry a lower price, but mismatched trip points can cause nuisance lockouts or fail to protect the unit. For a safety control, OEM is the recommended choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — typically a 15-minute repair with basic hand tools. Always disconnect power before servicing. Professional installation is recommended if you are not comfortable working around gas appliances.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032304435571,"sku":"10123533-GEN","price":9.7,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048281882995,"sku":"10123533","price":12.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-rollout-ACEC960803BNAB-1-1784495008097.jpg?v=1784495009"},{"product_id":"oem-goodman-primary-limit-temperature-control-for-acec960803bnab-20162904","title":"Goodman Primary Limit Temperature Control for ACEC960803BNAB — 20162904","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162904 Primary Limit Temperature Control\u003c\/strong\u003e is the main high-limit safety switch for the \u003cstrong\u003eACEC960803BNAB\u003c\/strong\u003e 96% AFUE gas furnace and compatible models. Mounted on the heat exchanger or blower deck, it continuously senses supply-air temperature and shuts off the burners if the furnace overheats — a critical protection against blocked airflow, dirty filters, or blower failure.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit temperature control\u003c\/li\u003e\n\u003cli\u003eReset: Automatic\u003c\/li\u003e\n\u003cli\u003eFunction: Over-temperature burner shutdown\u003c\/li\u003e\n\u003cli\u003eFits: ACEC960803BNAB and compatible Goodman\/Amana gas furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162904\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis OEM control is calibrated to the precise cut-out temperature engineered for this furnace cabinet. Generic limits with different trip points can cause repeated lockouts or, worse, fail to protect the heat exchanger. For a primary safety control we recommend the genuine Goodman part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate\u003c\/strong\u003e — usually a 20-30 minute job with a nut driver. Disconnect power before servicing and note wire and sensor-probe orientation. Professional installation is recommended if you are unsure.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Universal Replacement","offer_id":63032304599411,"sku":"20162904-GEN","price":35.06,"currency_code":"USD","in_stock":true},{"title":"Direct Replacement","offer_id":63048295219571,"sku":"20162904","price":46.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-20162904-1-1785178708801.jpg?v=1785178710"}],"url":"https:\/\/nationalhvacparts.com\/collections\/limit-switches.oembed?page=2","provider":"National HVAC Parts","version":"1.0","type":"link"}