{"product_id":"oem-goodman-210f-limit-switch-3-in-for-gmnt100-4-furnace-1370902s","title":"OEM Goodman 210F Limit Switch 3 in for GMNT100-4 Furnace — 1370902S","description":"\u003ch2\u003eGoodman 1370902S Limit Switch (210°F, 3 in)\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e1370902S high-limit switch\u003c\/strong\u003e is a genuine OEM safety control for the \u003cstrong\u003eGMNT100-4\u003c\/strong\u003e gas furnace. This temperature-actuated switch is rated to open at approximately \u003cstrong\u003e210°F\u003c\/strong\u003e and mounts on a \u003cstrong\u003e3-inch\u003c\/strong\u003e insertion depth. It protects the furnace by cutting power to the gas valve if supply-air temperature rises too high — a condition usually caused by a dirty filter, blocked ductwork, or a failed blower. When a limit switch fails open or drifts, the furnace short-cycles on heat or refuses to fire.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 1370902S\u003c\/li\u003e\n\u003cli\u003eOpen Temperature: 210°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003eMounting Depth: 3 inch\u003c\/li\u003e\n\u003cli\u003eType: Snap-disc high-limit safety switch\u003c\/li\u003e\n\u003cli\u003eCompatible Model: GMNT100-4 furnace\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM switch\u003c\/strong\u003e is calibrated to the exact 210°F trip point and 3-inch stem length the GMNT100-4 heat exchanger requires. Substituting a generic limit with a different set point or insertion depth can allow overheating or cause false trips. For correct safety operation, use OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Disconnect power, remove the two mounting screws and the spade wire connectors, and install the replacement in the same orientation. Roughly 15 minutes. Verify the disc sits flush against the mounting surface for accurate sensing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058130796915,"sku":"GOODMAN-11717","price":23.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-210f-limit-switch-3-in-for-gmnt100-4-furnace-1370902s","provider":"National HVAC Parts","version":"1.0","type":"link"}