{"product_id":"oem-goodman-blower-door-safety-switch-for-gsms100-4-b1370819","title":"OEM Goodman Blower Door Safety Switch for GSMS100-4 — B1370819","description":"\u003ch2\u003eGoodman B1370819 Blower Door Safety Switch\u003c\/h2\u003e\u003cp\u003eThe genuine OEM Goodman B1370819 is a blower-compartment door interlock switch for the Goodman GSMS100-4 furnace and compatible Goodman\/Amana units. This normally-open safety switch de-energizes the furnace whenever the blower access panel is removed, preventing operation with the door open. It is a code-required safety component that protects service technicians and homeowners from live electrical and moving-blower hazards.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Plunger-actuated door interlock switch\u003c\/li\u003e\n\u003cli\u003eFunction: Cuts control\/line power when blower door is removed\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GSMS100-4 and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370819\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (genuine OEM)\u003c\/li\u003e\n\u003cli\u003eApplication: Gas furnace blower-door safety\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine Goodman B1370819 matches the exact plunger travel, bracket, and terminal layout of the original, ensuring the door reliably actuates the switch. Generic replacements often have different actuation depths or mounting tabs, which can leave the furnace unable to start or unsafely running with the panel off. OEM is strongly recommended for interlock reliability.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e With power disconnected, unclip the wire terminals, remove the mounting screw, and install the replacement in the same orientation. Verify the blower door depresses the plunger fully on reassembly. Roughly 15 minutes with basic tools.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058181947763,"sku":"GOODMAN-12981","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-blower-door-safety-switch-for-gsms100-4-b1370819","provider":"National HVAC Parts","version":"1.0","type":"link"}