{"product_id":"oem-goodman-door-switch-with-wires-for-gmt070-4-b1370820","title":"OEM Goodman Door Switch with Wires for GMT070-4 — B1370820","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370820 Blower Door Switch\u003c\/strong\u003e is a genuine OEM safety interlock, supplied with pre-attached wire leads, as a direct-fit replacement for the \u003cstrong\u003eGMT070-4\u003c\/strong\u003e gas furnace. This switch cuts power to the furnace whenever the blower access panel is removed, protecting the technician and preventing operation with the door off. A failed door switch is a very common cause of a furnace that appears completely dead — no blower, no ignition, no lights.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: normally-open plunger interlock switch\u003c\/li\u003e\n\u003cli\u003eWiring: pre-installed lead wires included\u003c\/li\u003e\n\u003cli\u003eFunction: de-energizes furnace when blower door is open\u003c\/li\u003e\n\u003cli\u003eActuation: closes when access panel is installed\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMT070-4 furnace\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370820\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine Goodman assembly arrives with the correct lead length, connectors, and plunger geometry so the door closes cleanly against it. Generic switches often require splicing and re-positioning the bracket, and a poorly seated plunger leads to intermittent power loss. The OEM part is the reliable drop-in.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate.\u003c\/strong\u003e Mount the bracket, connect the two leads, and verify the door depresses the plunger fully. About 15–25 minutes. Always disconnect power before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058157928819,"sku":"GOODMAN-12327","price":40.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-door-switch-with-wires-for-gmt070-4-b1370820","provider":"National HVAC Parts","version":"1.0","type":"link"}