{"product_id":"oem-goodman-300f-rollout-limit-switch-for-gmt045-3-furnace-b1370145","title":"OEM Goodman 300F Rollout Limit Switch for GMT045-3 Furnace — B1370145","description":"\u003ch2\u003eGoodman B1370145 Flame Rollout Switch — 300°F\u003c\/h2\u003e\u003cp\u003eThis genuine OEM B1370145 rollout limit switch is a primary safety control on your Goodman \u003cstrong\u003eGMT045-3\u003c\/strong\u003e furnace. It monitors for flame rollout at the burner box and cuts power to the gas valve if temperatures reach 300°F, preventing dangerous overheating. If your furnace locks out on a rollout fault or the switch fails to reset, replacing it restores safe operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 300°F\u003c\/li\u003e\n\u003cli\u003eReset type: manual push-button reset\u003c\/li\u003e\n\u003cli\u003eOEM part number: B1370145\u003c\/li\u003e\n\u003cli\u003eFits Goodman GMT045-3 series furnaces\u003c\/li\u003e\n\u003cli\u003eNormally-closed, opens on temperature rise\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause this is a \u003cstrong\u003elife-safety\u003c\/strong\u003e component, we strongly recommend the \u003cstrong\u003eOEM\u003c\/strong\u003e switch — it is calibrated to Goodman's exact 300°F trip point and terminal spacing. A \u003cstrong\u003eGeneric\u003c\/strong\u003e switch may carry the same rating at lower cost but can vary in trip tolerance. For gas-safety parts, exact calibration matters.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy.\u003c\/strong\u003e Two mounting screws and two push-on spade terminals. Budget 15–20 minutes. Shut off gas and power first, and never bypass a tripped rollout switch — repeated trips indicate a heat-exchanger or venting problem that needs inspection.\u003c\/p\u003e\u003cp\u003eCompatible with GMT045-3 furnaces. Confirm your model plate before ordering.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058155110771,"sku":"GOODMAN-12266","price":4.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300f-rollout-limit-switch-for-gmt045-3-furnace-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}