{"product_id":"oem-goodman-blower-door-safety-switch-w-wires-b1370820-1","title":"OEM Goodman Blower Door Safety Switch w\/ Wires — B1370820","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370820 Blower Door Safety Switch\u003c\/strong\u003e is a genuine OEM interlock supplied \u003cstrong\u003ewith pre-attached wire leads\u003c\/strong\u003e, engineered for \u003cstrong\u003eGMNT045-3B\u003c\/strong\u003e and compatible Goodman and Amana furnaces. This switch cuts power to the burners and blower whenever the blower access door is removed, so the furnace cannot operate with the compartment open — a code-required safety feature that protects service technicians and homeowners.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e SPST plunger door interlock switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Normally open, closes when door is installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Factory-installed lead wires with terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Blower compartment bracket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman\/Amana GMNT045-3B and compatible models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e B1370820\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM B1370820 ships complete with the correct pre-wired harness and plunger length for this furnace's door geometry. Generic door switches are often bare (no leads) and require you to source and crimp your own connectors, and an incorrect plunger travel can leave the furnace unable to start. OEM guarantees proper actuation and a plug-and-play install.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Easy–Moderate (2\/5).\u003c\/strong\u003e Roughly 15–20 minutes. Shut off power at the disconnect, note the existing wire routing, unclip the old switch, mount the new one in the same bracket, and connect the pre-wired leads to the control board or line splice. Reinstall the door and confirm the furnace only runs with it fully closed. If the furnace is completely dead, a stuck-open door switch is a frequent, inexpensive cause worth checking first.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058127978867,"sku":"GOODMAN-11628","price":54.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-blower-door-safety-switch-w-wires-b1370820-1","provider":"National HVAC Parts","version":"1.0","type":"link"}