{"product_id":"oem-goodman-300-f-rollout-limit-switch-for-gmnt040-3b-b1370145","title":"OEM Goodman 300°F Rollout Limit Switch for GMNT040-3B — B1370145","description":"\u003ch2\u003eGoodman B1370145 300°F Rollout Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB1370145\u003c\/strong\u003e is an OEM 300°F flame rollout switch designed as a direct-fit safety control for the \u003cstrong\u003eGMNT040-3B\u003c\/strong\u003e gas furnace. The rollout switch monitors the burner box for flame that escapes (\"rolls out\") from the burners — a condition caused by a blocked heat exchanger or poor venting. When it senses excess heat, it opens the circuit and shuts down the furnace to prevent a fire or CO hazard.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Manual-reset flame rollout limit switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 300°F (open on rise)\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMNT040-3B furnace\u003c\/li\u003e\n\u003cli\u003eElectrical: Normally closed, opens on temperature rise\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370145\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eGenuine Goodman OEM rollout switches are calibrated to the exact 300°F trip point and terminal spacing required by the furnace's safety circuit. Generic switches with loose tolerances can nuisance-trip or, worse, fail to open at the rated temperature. On a life-safety component, OEM is the correct choice.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy — DIY-friendly.\u003c\/strong\u003e The switch mounts to the burner bracket with two screws and connects with quick-disconnect terminals. Always cut power at the disconnect before servicing. If the switch has tripped, diagnose the underlying cause (blocked exchanger or venting) before returning the unit to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058127618419,"sku":"GOODMAN-11616","price":4.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300-f-rollout-limit-switch-for-gmnt040-3b-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}