{"product_id":"oem-goodman-300f-rollout-limit-switch-for-gmt140-5a-b1370145","title":"OEM Goodman 300F Rollout Limit Switch for GMT140-5A — B1370145","description":"\u003cp\u003eProtect your furnace and home with the genuine Goodman \u003cstrong\u003eB1370145\u003c\/strong\u003e flame rollout limit switch, rated to trip at \u003cstrong\u003e300°F\u003c\/strong\u003e and built for the Goodman \u003cstrong\u003eGMT140-5A\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This manual-reset safety device mounts near the burner box and instantly cuts power to the gas valve if flames roll out of the combustion chamber — a critical protection against a blocked heat exchanger or restricted venting.\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 safety limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: de-energizes gas valve on rollout condition\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMT140-5A and compatible Goodman \u0026amp; Amana furnaces\u003c\/li\u003e\n\u003cli\u003eOEM part number: B1370145\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause this is a safety-critical control, the OEM B1370145 is calibrated and tested to trip at the exact factory setpoint. Generic switches may open early (nuisance lockouts) or late (defeating the protection). For a life-safety component, always choose the genuine Goodman part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — usually two mounting screws and two push-on spade terminals. Cut power first, note the wire positions, swap the switch, and press its reset button. If the new switch trips again, stop and have the furnace inspected — a tripped rollout switch signals an underlying combustion problem.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNever bypass a safety switch. Disconnect power before servicing and involve a licensed HVAC technician if the condition recurs.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058164547955,"sku":"GOODMAN-12483","price":18.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300f-rollout-limit-switch-for-gmt140-5a-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}