{"product_id":"oem-goodman-furnace-door-interlock-switch-for-adv81155cxa-b1370819","title":"OEM Goodman Furnace Door Interlock Switch for ADV81155CXA — B1370819","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370819 Door Interlock Switch\u003c\/strong\u003e is the genuine OEM blower-compartment safety switch for the \u003cstrong\u003eADV81155CXA\u003c\/strong\u003e furnace and compatible Goodman\/Amana models. This normally-open switch closes only when the blower access panel is properly seated, allowing 120V power to reach the control board. Remove the door and the furnace safely de-energizes — protecting service technicians and preventing operation with the cabinet open.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1370819\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Blower-door safety interlock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e SPST, plunger-actuated, normally open\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 120V line-voltage circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman OEM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Fit:\u003c\/strong\u003e ADV81155CXA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eA worn or stuck door switch is a common cause of a totally dead furnace. The OEM B1370819 offers the correct plunger travel, contact rating, and mounting tabs so the panel actuates it reliably. Generic switches may not align with the factory bracket, leading to intermittent no-heat calls. OEM fit means the interlock works exactly as designed.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1.5\/5).\u003c\/strong\u003e Unscrew the switch from its bracket, transfer the two wire leads, and remount so the door plunger depresses it fully. Roughly 15 minutes with power off. Confirm the panel seats against the plunger before restoring power.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057512333683,"sku":"GOODMAN-3477","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-furnace-door-interlock-switch-for-adv81155cxa-b1370819","provider":"National HVAC Parts","version":"1.0","type":"link"}