{"product_id":"oem-goodman-door-interlock-switch-with-wires-for-gmt045-3b-b1370820","title":"OEM Goodman Door Interlock Switch with Wires for GMT045-3B — B1370820","description":"\u003ch2\u003eGoodman B1370820 Door Interlock Switch (with Wires)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB1370820\u003c\/strong\u003e is a genuine Goodman blower-compartment door interlock switch, supplied complete with factory pre-wired leads for a plug-and-play install. It is a direct-fit replacement for the \u003cstrong\u003eGMT045-3B\u003c\/strong\u003e and compatible Goodman\/Amana furnaces. This safety switch cuts power to the furnace whenever the blower access panel is removed, preventing the unit from operating with the door open — a code-required protection against exposure to the blower and combustion area.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFunction: Blower door \/ panel interlock safety switch\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally open, closes when door is installed\u003c\/li\u003e\n\u003cli\u003eIncludes: Switch with pre-attached wire leads\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement for GMT045-3B\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman genuine OEM part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eChoosing the \u003cstrong\u003egenuine Goodman OEM\u003c\/strong\u003e assembly guarantees the correct actuator height, lead length, and connector so the door reliably trips the switch. Generic door switches often need splicing and may misalign with the panel, causing intermittent no-heat calls. The pre-wired OEM part removes that guesswork.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy–Moderate (2 of 5).\u003c\/strong\u003e Mount the bracket, route the leads, and connect to the existing harness. Disconnect power before servicing; consult a licensed HVAC technician if you are unsure.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058155962739,"sku":"GOODMAN-12282","price":40.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-door-interlock-switch-with-wires-for-gmt045-3b-b1370820","provider":"National HVAC Parts","version":"1.0","type":"link"}