{"product_id":"oem-goodman-blower-door-safety-switch-w-wires-for-dms80904bna-b1370820","title":"OEM Goodman Blower Door Safety Switch w\/ Wires for DMS80904BNA — B1370820","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370820 Blower Door Safety Switch\u003c\/strong\u003e is a pre-wired OEM interlock for the \u003cstrong\u003eDMS80904BNA\u003c\/strong\u003e furnace and compatible Goodman\/Amana models. This normally-open plunger switch de-energizes the furnace whenever the blower access panel is removed, preventing the unit from firing or the blower from spinning while the cabinet is open — a required safety feature on modern gas furnaces.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Plunger \/ snap-action door interlock switch\u003c\/li\u003e\n\u003cli\u003eContact configuration: Normally open (closes when door is installed)\u003c\/li\u003e\n\u003cli\u003eIncludes: Factory wire harness with connectors (ready to plug in)\u003c\/li\u003e\n\u003cli\u003eFunction: Blower-compartment safety interlock\u003c\/li\u003e\n\u003cli\u003eFits: Goodman\/Amana DMS80904BNA and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eOEM part number: B1370820\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause it ships \u003cstrong\u003ewith the correct wire harness and connectors\u003c\/strong\u003e, this OEM switch plugs directly into the furnace with no splicing. Generic door switches often require cutting and crimping and may use a plunger of the wrong length, leaving the furnace dead or unsafely bypassed. OEM is the clean, reliable choice here.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e Disconnect power, unclip the old switch from its bracket, unplug the harness, then mount the new switch and route the pre-terminated leads to the same connector. Confirm the plunger is depressed when the panel is fully seated. Roughly 15–25 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058041241971,"sku":"GOODMAN-B1370820","price":54.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-blower-door-safety-switch-w-wires-for-dms80904bna-b1370820","provider":"National HVAC Parts","version":"1.0","type":"link"}