{"product_id":"oem-goodman-240-f-primary-limit-switch-for-gupi100-4-b1370912s","title":"OEM Goodman 240°F Primary Limit Switch for GUPI100-4 — B1370912S","description":"\u003ch2\u003eGoodman B1370912S Primary Limit Switch (240°F, 7\")\u003c\/h2\u003e\u003cp\u003eThe Goodman B1370912S is a genuine OEM primary high-limit switch designed as a direct-fit replacement for the Goodman GUPI100-4 gas furnace. Mounted on the heat exchanger bulkhead, this normally-closed thermal switch opens the control circuit and shuts off the gas valve if supply air temperature exceeds its 240°F trip point — protecting the heat exchanger, cabinet, and ductwork from overheating caused by restricted airflow, a dirty filter, or a failed blower.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B1370912S\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 240°F (open on rise, auto-reset)\u003c\/li\u003e\n\u003cli\u003eInsert Length: 7 inches\u003c\/li\u003e\n\u003cli\u003eType: Normally-closed primary high-limit safety switch\u003c\/li\u003e\n\u003cli\u003eCompatible Model: Goodman GUPI100-4 (100,000 BTU furnace)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM B1370912S is calibrated to the exact 240°F set point and 7-inch probe depth the GUPI100-4 heat exchanger requires. A generic switch with a different trip temperature or insert length can nuisance-trip during normal operation or, worse, fail to open when it should. Genuine Goodman parts ensure the safety circuit behaves exactly as the factory intended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eRating: Intermediate (2\/5).\u003c\/strong\u003e Typically two mounting screws and two spade terminals. Disconnect power at the breaker first, note the wire positions, and confirm the insert length matches before installing. A confident DIYer can complete this in about 15 minutes.\u003c\/p\u003e\u003cp\u003eShips fast and backed by our 1-year warranty. Email info@nationalhvacparts.com with fitment questions.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058195775859,"sku":"GOODMAN-13266","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-240-f-primary-limit-switch-for-gupi100-4-b1370912s","provider":"National HVAC Parts","version":"1.0","type":"link"}