{"product_id":"oem-goodman-140-f-stack-overtemp-limit-switch-for-gmpn120-5-b1370253","title":"OEM Goodman 140°F Stack Overtemp Limit Switch for GMPN120-5 — B1370253","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370253\u003c\/strong\u003e is a genuine OEM 140°F stack overtemperature limit switch for the \u003cstrong\u003eGMPN120-5\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. It monitors flue\/stack temperature and interrupts the control circuit if the vent runs hotter than design, guarding against blocked venting and overheating conditions.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip temperature:\u003c\/strong\u003e 140°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic (closes on cooldown)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact type:\u003c\/strong\u003e Normally Closed (opens on rise)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Stack \/ vent overtemp safety limit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMPN120-5 furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe 140°F calibration on this switch is specific to the GMPN120-5 venting design. This factory-original Goodman part guarantees the correct trip and reset points, avoiding the short-cycling and false lockouts common with mismatched aftermarket switches. For a safety limit, OEM is the right call.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e A quick 10-minute replacement: disconnect power and gas, remove the mounting screws, move the spade connectors to the new switch, and reinstall in the same orientation. If the switch was tripping, verify the flue and heat exchanger are clear before restoring service. When in doubt, use a licensed HVAC professional.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058150392179,"sku":"GOODMAN-12107","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-140-f-stack-overtemp-limit-switch-for-gmpn120-5-b1370253","provider":"National HVAC Parts","version":"1.0","type":"link"}