{"product_id":"oem-goodman-furnace-door-interlock-switch-for-gus125-5-b1370819","title":"OEM Goodman Furnace Door Interlock Switch for GUS125-5 — B1370819","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370819 Door Switch\u003c\/strong\u003e is a genuine OEM blower-door interlock safety switch for the \u003cstrong\u003eGUS125-5\u003c\/strong\u003e furnace and compatible Goodman \u0026amp; Amana units. This normally-open plunger switch cuts power to the furnace when the blower access panel is removed, preventing the unit from running with the door off. A stuck, broken, or bypassed door switch is a common cause of a furnace that won't start — the plunger must be depressed by a properly seated panel to complete the circuit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Plunger-actuated interlock (blower-door safety)\u003c\/li\u003e\n\u003cli\u003eAction: Normally open; closes when panel is installed\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370819\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GUS125-5 and select Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eFunction: De-energizes furnace when access door is open\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM B1370819\u003c\/strong\u003e matches the original plunger length and mounting footprint so the panel actuates it correctly — a critical detail, since a mismatched generic switch may not close reliably and can cause intermittent no-heat calls. For dependable safety operation, choose OEM.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy.\u003c\/strong\u003e Two wires and one or two mounting screws, plus verifying plunger alignment with the door. About 15–20 minutes. Disconnect power at the breaker before servicing. Never tape down or bypass this switch — it exists for your safety.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058199347571,"sku":"GOODMAN-13358","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-furnace-door-interlock-switch-for-gus125-5-b1370819","provider":"National HVAC Parts","version":"1.0","type":"link"}