{"product_id":"oem-goodman-door-interlock-switch-w-wires-for-gmnt080-4b-b1370820","title":"OEM Goodman Door Interlock Switch w\/ Wires for GMNT080-4B — B1370820","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370820 Door Switch with Wires\u003c\/strong\u003e is a genuine OEM blower-door interlock assembly for the \u003cstrong\u003eGMNT080-4B\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This normally-open safety switch de-energizes the furnace whenever the blower access panel is removed, protecting technicians and homeowners from live electrical and moving parts. It ships as a complete assembly with the factory \u003cstrong\u003ewire harness pre-attached\u003c\/strong\u003e for a plug-and-play replacement.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1370820 (OEM Goodman)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Blower door interlock safety switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Pre-wired harness with connectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAction:\u003c\/strong\u003e Normally open — closes when door panel is installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit:\u003c\/strong\u003e Goodman GMNT080-4B and compatible furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e Gas furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM B1370820\u003c\/strong\u003e arrives with the correct harness length, connector type, and plunger geometry to seat properly against your furnace's door panel. Generic door switches often require splicing and may not align with the panel, causing intermittent power loss or a furnace that won't start. The pre-wired OEM assembly saves time and ensures reliable interlock operation.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Around 15–25 minutes. Disconnect power, unplug the old harness, remove the switch mounting screws, install the new switch, and reconnect the harness. Confirm the furnace powers on only when the blower door is fully seated and shuts off when removed. If you are not comfortable working with furnace wiring, consult a licensed HVAC professional.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058129846643,"sku":"GOODMAN-11689","price":59.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-door-interlock-switch-w-wires-for-gmnt080-4b-b1370820","provider":"National HVAC Parts","version":"1.0","type":"link"}