{"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}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-140-f-stack-overtemp-limit-switch-for-gmpn080-4-b1370253","provider":"National HVAC Parts","version":"1.0","type":"link"}