{"product_id":"oem-goodman-blower-door-safety-switch-for-gdt115-5b-b1370819","title":"OEM Goodman Blower Door Safety Switch for GDT115-5B — B1370819","description":"\u003ch2\u003eGoodman B1370819 Blower Door Interlock Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB1370819\u003c\/strong\u003e is a genuine OEM blower-compartment door safety switch for the \u003cstrong\u003eGDT115-5B\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This spring-plunger interlock cuts power to the furnace whenever the blower access panel is removed, preventing the unit from running with the door open — a UL safety requirement that also protects technicians during service. A stuck, broken, or missing door switch is a common reason a furnace appears completely dead with no response from the control board.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Plunger-actuated door interlock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e De-energizes furnace when blower panel is removed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e Normally open (closes when door is installed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits model:\u003c\/strong\u003e GDT115-5B furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM part number:\u003c\/strong\u003e B1370819\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (genuine OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003egenuine Goodman OEM\u003c\/strong\u003e door switch matches the original plunger length, bracket, and terminal layout for a precise fit and reliable actuation. Generic switches may have a different throw or mounting pattern, causing intermittent power loss or a furnace that won't start even with the panel closed. For a dependable interlock, OEM is the safe choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e One mounting screw and two spade terminals. Disconnect furnace power, transfer the wires to the new switch, and reinstall. Confirm the plunger depresses fully when the panel is seated. About a 10-minute repair.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058082529651,"sku":"GOODMAN-10504","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-blower-door-safety-switch-for-gdt115-5b-b1370819","provider":"National HVAC Parts","version":"1.0","type":"link"}