{"product_id":"oem-goodman-furnace-door-interlock-safety-switch-for-gmnt120-5b-b1370820","title":"OEM Goodman Furnace Door Interlock Safety Switch for GMNT120-5B — B1370820","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370820 Door Interlock Safety Switch\u003c\/strong\u003e is a genuine OEM replacement part engineered for the Goodman \u003cstrong\u003eGMNT120-5B\u003c\/strong\u003e gas furnace and compatible models. This SPST interlock switch cuts power to the blower and control circuit whenever the blower access door is removed, protecting technicians and homeowners from live components and moving parts. It ships with the factory wiring harness attached for a plug-and-play install.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Number: B1370820\u003c\/li\u003e\n\u003cli\u003eType: SPST normally-open door interlock switch\u003c\/li\u003e\n\u003cli\u003eIncludes: Pre-attached wire leads\u003c\/li\u003e\n\u003cli\u003eFunction: Disables blower\/control power when door is open\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMNT120-5B and select Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eChoosing this genuine Goodman OEM switch guarantees exact contact ratings, actuator travel, and mounting geometry — critical for a safety device. Aftermarket door switches often have looser tolerances that can cause nuisance blower shutdowns or fail to break the circuit reliably. For a component tied directly to occupant safety, OEM is the recommended choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Disconnect power at the breaker, remove the blower door, unclip the two spade connectors, and swap the switch into its bracket. Most installs take under 15 minutes. Always confirm the switch opens when the door is removed before restoring power. If you are not comfortable working near line-voltage wiring, contact a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058131976563,"sku":"GOODMAN-11760","price":40.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-furnace-door-interlock-safety-switch-for-gmnt120-5b-b1370820","provider":"National HVAC Parts","version":"1.0","type":"link"}