{"product_id":"oem-goodman-300f-rollout-limit-switch-for-gmnt080-4b-b1370145","title":"OEM Goodman 300F Rollout Limit Switch for GMNT080-4B — B1370145","description":"\u003ch2\u003eGoodman B1370145 Flame Rollout Switch (300°F)\u003c\/h2\u003e\u003cp\u003eThis genuine OEM Goodman \u003cstrong\u003eB1370145\u003c\/strong\u003e flame rollout limit switch is a 300°F manual-reset safety control for the \u003cstrong\u003eGMNT080-4B\u003c\/strong\u003e gas furnace and cross-referenced Goodman\/Amana models. Mounted on the burner box, it opens the control circuit and shuts down the furnace if flame rolls out of the heat exchanger — a critical safety response to blocked venting, a cracked exchanger, or a failing inducer. A tripped or failed switch prevents heating and must be replaced with the correct-temperature part.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 300°F\u003c\/li\u003e\n\u003cli\u003eReset: Manual (push-button)\u003c\/li\u003e\n\u003cli\u003ePart number: B1370145 (OEM Goodman)\u003c\/li\u003e\n\u003cli\u003eFits: GMNT080-4B and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eFunction: Flame rollout \/ high-limit safety switch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM B1370145 is calibrated to the exact 300°F trip point and bracket footprint the GMNT080-4B specifies. Substituting a different trip temperature or generic switch can cause nuisance trips or, worse, fail to shut the furnace down when it should. On a safety control, matching the OEM rating is essential — do not substitute a different temperature.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Disconnect power, unplug the two spade terminals, remove two mounting screws, and install the new switch. A quick repair for a handy DIYer — but always diagnose \u003cem\u003ewhy\u003c\/em\u003e the rollout tripped before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058129617267,"sku":"GOODMAN-11684","price":4.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300f-rollout-limit-switch-for-gmnt080-4b-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}