{"product_id":"oem-goodman-300-f-rollout-limit-switch-for-ams80904bnaa-b1370145","title":"OEM Goodman 300°F Rollout Limit Switch for AMS80904BNAA — B1370145","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370145 Flame Rollout Limit Switch\u003c\/strong\u003e is a genuine OEM 300°F manual-reset safety control for the \u003cstrong\u003eAMS80904BNAA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. Mounted near the burner box, it trips and shuts off the gas valve if flames roll out of the combustion chamber — typically caused by a blocked flue, cracked heat exchanger, or poor draft. Replacing a tripped or failed rollout switch is essential to safe furnace operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 300°F\u003c\/li\u003e\n\u003cli\u003eType: Manual-reset flame rollout \/ limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: Combustion safety cutoff\u003c\/li\u003e\n\u003cli\u003eFits: AMS80904BNAA and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eTerminals: Standard 1\/4 in. quick-connect\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman B1370145\u003c\/strong\u003e is calibrated to the exact 300°F trip point the furnace's safety design depends on. Generic switches may carry a similar temperature rating but can drift out of spec, causing nuisance trips or — far worse — failing to open when needed. On a life-safety combustion control, install OEM only.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Easy.\u003c\/strong\u003e Two spade terminals and one or two mounting screws — about 10–15 minutes. \u003cem\u003eAlways shut off gas and disconnect electrical power before servicing.\u003c\/em\u003e Because a tripped rollout switch signals an underlying combustion fault, have the root cause (flue blockage or heat exchanger) inspected before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057705763187,"sku":"GOODMAN-7071","price":4.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300-f-rollout-limit-switch-for-ams80904bnaa-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}