{"product_id":"oem-goodman-300-f-rollout-limit-switch-for-gdt045-3a-b1370145","title":"OEM Goodman 300°F Rollout Limit Switch for GDT045-3A — B1370145","description":"\u003ch2\u003eGoodman B1370145 300°F Flame Rollout Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB1370145\u003c\/strong\u003e is a genuine OEM manual-reset flame rollout limit switch rated to open at \u003cstrong\u003e300°F\u003c\/strong\u003e, designed for \u003cstrong\u003eGDT045-3A\u003c\/strong\u003e gas furnaces. This safety control senses flame rollout at the burner box and shuts off the gas valve if flames escape the combustion chamber — protecting the furnace and home from overheating. A tripped or failed switch prevents ignition and is a critical safety component that must be replaced with an exact-rated part.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOpen temperature: 300°F\u003c\/li\u003e\n\u003cli\u003eReset type: Manual push-button\u003c\/li\u003e\n\u003cli\u003ePart number: B1370145\u003c\/li\u003e\n\u003cli\u003eCompatible model: GDT045-3A furnace\u003c\/li\u003e\n\u003cli\u003eType: Flame rollout safety limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: Normally closed, opens on over-temperature\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause this is a safety device, the trip temperature and reset behavior must match the furnace's design exactly. Genuine Goodman B1370145 switches are calibrated to the correct 300°F set point. Substituting a mis-rated generic switch can defeat a life-safety function — OEM is required, not optional.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Typically two spade terminals and a single mounting screw or bracket clip. Turn off power and gas, note wire positions, and swap. If the switch keeps tripping, diagnose the root cause (blocked flue, dirty burners, or heat exchanger crack) before returning to service.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFits Goodman GDT045-3A. Verify the printed 300°F rating before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058078957939,"sku":"GOODMAN-10402","price":4.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300-f-rollout-limit-switch-for-gdt045-3a-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}