{"title":"Switches","description":"\u003cp\u003eOEM switches for Carrier, Payne, Bryant, ICP-family, Goodman, Amana and Rheem equipment. Every part lists the exact models it fits — match your model number for guaranteed fitment.\u003c\/p\u003e","products":[{"product_id":"oem-goodman-140-f-stack-overtemp-limit-switch-for-gmpn080-4-b1370253","title":"OEM Goodman 140°F Stack Overtemp Limit Switch for GMPN080-4 — B1370253","description":"\u003ch2\u003eGoodman B1370253 Stack Overtemp Limit Switch (140°F)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGoodman B1370253\u003c\/strong\u003e is a genuine OEM stack overtemp (auto-reset) limit switch engineered for the \u003cstrong\u003eGMPN080-4\u003c\/strong\u003e gas furnace and other compatible Goodman\/Amana models. This safety control monitors flue and heat-exchanger temperatures and opens the circuit if it senses an overtemperature condition — a critical protection against blocked venting, restricted airflow, or a failed inducer. When your furnace short-cycles, locks out on limit, or trips repeatedly on high heat, a fatigued overtemp switch is a common, low-cost culprit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip point: 140°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003eFunction: Stack \/ flue overtemp safety limit\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370253\u003c\/li\u003e\n\u003cli\u003eCompatible model: Goodman GMPN080-4\u003c\/li\u003e\n\u003cli\u003eEquipment type: Gas Furnace\u003c\/li\u003e\n\u003cli\u003eTerminal style: Push-on spade connectors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003eOEM Goodman B1370253\u003c\/strong\u003e is built to the exact trip temperature and mechanical tolerances Goodman specifies, ensuring reliable, code-compliant safety operation. Aftermarket generic switches may drift in calibration or use lower-grade bimetal discs, leading to nuisance trips or — worse — failure to open when needed. For a life-safety component, factory-matched OEM is the smart choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e A two-wire swap that most handy homeowners can complete in 10–15 minutes with a nut driver. Always disconnect power at the furnace switch and breaker before servicing. If your furnace is still tripping after replacement, have a licensed HVAC technician inspect for underlying airflow or venting issues.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058147115379,"sku":"GOODMAN-12085","price":8.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-GOODMAN-12085.jpg?v=1783387479"},{"product_id":"oem-goodman-door-interlock-switch-w-wires-for-gmpn080-4-b1370820","title":"OEM Goodman Door Interlock Switch w\/ Wires for GMPN080-4 — B1370820","description":"\u003ch2\u003eGoodman B1370820 Blower Door Interlock Switch (Pre-Wired)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGoodman B1370820\u003c\/strong\u003e is a genuine OEM blower-compartment door interlock switch supplied \u003cstrong\u003ecomplete with its wire harness\u003c\/strong\u003e, designed for the \u003cstrong\u003eGMPN080-4\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana units. This safety switch cuts power to the furnace whenever the blower access panel is removed, preventing operation with an open cabinet. If your furnace goes completely dead when the door is off, won't start with the panel installed, or has a broken\/burned door-switch plunger, this pre-wired assembly is the direct fix.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Normally-open door interlock safety switch\u003c\/li\u003e\n\u003cli\u003eIncludes: Factory wire leads \/ harness\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370820\u003c\/li\u003e\n\u003cli\u003eCompatible model: Goodman GMPN080-4\u003c\/li\u003e\n\u003cli\u003eEquipment type: Gas Furnace\u003c\/li\u003e\n\u003cli\u003eMounting: Blower access panel bracket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman B1370820\u003c\/strong\u003e arrives with the correct connector, lead length, and plunger geometry so it seats against the door exactly as designed. Generic door switches often require splicing, come with mismatched brackets, or use weaker actuators that fail early. Buying the factory pre-wired assembly saves troubleshooting time and guarantees the interlock functions as a proper safety device.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy–Moderate (2\/5).\u003c\/strong\u003e Plan on 15–25 minutes. Cut power first, note wire routing, unbolt the old switch bracket, mount the new one, and reconnect the leads. Confirm the plunger depresses fully when the door is latched. A multimeter helps verify continuity before button-up.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058147148147,"sku":"GOODMAN-12086","price":40.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-door-switch-GOODMAN-12086.jpg?v=1783397175"},{"product_id":"oem-goodman-stack-overtemp-limit-switch-for-gun040-2-b1370109","title":"OEM Goodman Stack Overtemp Limit Switch for GUN040-2 — B1370109","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370109 Stack Overtemp Limit Switch\u003c\/strong\u003e is a genuine OEM safety control engineered for the \u003cstrong\u003eGUN040-2\u003c\/strong\u003e gas furnace. This normally-closed thermal switch monitors heat-exchanger and stack temperatures and opens the circuit if the furnace exceeds its safe operating range, shutting off the burners to prevent overheating, cracked heat exchangers, and nuisance faults. If your furnace is short-cycling on limit, locking out, or throwing an open-limit code, a failed stack switch is a common culprit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B1370109\u003c\/li\u003e\n\u003cli\u003eType: Stack \/ overtemp limit switch (normally closed)\u003c\/li\u003e\n\u003cli\u003eFunction: High-temperature safety cutout\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman GUN040-2 gas furnace\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (genuine OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is the \u003cstrong\u003efactory-original Goodman part\u003c\/strong\u003e, calibrated to the exact trip and reset temperatures your furnace's control sequence expects. Generic aftermarket limit switches often use approximate temperature ratings that can trip early (nuisance shutdowns) or late (a real safety risk). For a control this critical, OEM is the safe choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy–Moderate.\u003c\/strong\u003e A DIY-friendly swap for anyone comfortable working inside a furnace cabinet. Cut power at the breaker, disconnect the two terminals, remove the mounting screws, and install the replacement in the same orientation. Most installs take 15–20 minutes. If you are unsure why the original tripped, have the furnace inspected — repeated overtemp faults can indicate airflow restriction or a heat-exchanger problem.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058187092339,"sku":"GOODMAN-13110","price":8.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-GOODMAN-13110.jpg?v=1783407214"},{"product_id":"oem-goodman-auto-reset-aux-limit-switch-for-wgge4342a070mab-20269903","title":"OEM Goodman Auto-Reset Aux Limit Switch for WGGE4342A070MAB — 20269903","description":"\u003ch2\u003eGenuine Goodman 20269903 Auxiliary Auto-Reset Limit Switch\u003c\/h2\u003e\u003cp\u003eThe OEM Goodman 20269903 is an auxiliary auto-reset limit switch for the \u003cstrong\u003eWGGE4342A070MAB\u003c\/strong\u003e furnace. It provides secondary overheat protection — commonly guarding the blower or secondary heat-exchanger area — and opens the control circuit if temperature exceeds its rated setpoint. Because it is \u003cstrong\u003eauto-reset\u003c\/strong\u003e, the switch closes again automatically once the area cools, allowing normal operation to resume without manual intervention.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 20269903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auxiliary auto-reset limit switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic (self-resetting on cooldown)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Secondary overtemperature safety cutout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit:\u003c\/strong\u003e Goodman WGGE4342A070MAB (verify against your model)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eGenuine Goodman switches carry the precise trip and reset temperatures specified for your furnace. Generic auto-reset switches risk nuisance cycling or delayed protection. For a safety-critical control, OEM is the reliable choice.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate\u003c\/strong\u003e — disconnect two spade terminals and unscrew the switch from its mounting. Cut power before service. Repeated tripping usually points to restricted airflow (dirty filter, blower, or coil) — correct the root cause, not just the switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058249515379,"sku":"GOODMAN-14674","price":22.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-GOODMAN-14674.jpg?v=1783392069"}],"url":"https:\/\/nationalhvacparts.com\/collections\/switches.oembed","provider":"National HVAC Parts","version":"1.0","type":"link"}