{"product_id":"oem-goodman-blower-door-safety-switch-for-gmth070-4a-b1370819","title":"OEM Goodman Blower Door Safety Switch for GMTH070-4A — B1370819","description":"\u003ch2\u003eGoodman B1370819 Blower Door Safety Switch\u003c\/h2\u003e\u003cp\u003eThe B1370819 is a genuine OEM blower-compartment door interlock switch for the Goodman GMTH070-4A furnace and many compatible Goodman\/Amana models. This plunger-style safety switch cuts power to the furnace whenever the blower access panel is removed, preventing operation with the door open. If your furnace is completely dead — no ignition, no blower, no control-board lights — a stuck or broken door switch is one of the first things to check.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Normally-open plunger interlock switch\u003c\/li\u003e\n\u003cli\u003eFunction: Blower-door safety cutoff (line-voltage)\u003c\/li\u003e\n\u003cli\u003eActuation: Panel-mounted plunger, opens circuit when door is off\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMTH070-4A and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM B1370819 matches the original plunger length, mounting tabs, and contact rating so the door reliably actuates the switch. Generic door switches frequently have the wrong plunger travel or bracket, leading to no-heat calls or a switch that never closes. OEM ensures correct fit and a safe, code-compliant interlock.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Snaps or screws into the panel bracket with two wire connections. Disconnect power first — this is a line-voltage part. About 10 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058166153587,"sku":"GOODMAN-12548","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-blower-door-safety-switch-for-gmth070-4a-b1370819","provider":"National HVAC Parts","version":"1.0","type":"link"}