{"product_id":"oem-goodman-150f-primary-limit-switch-for-gmt140-5bb-b1370198","title":"OEM Goodman 150F Primary Limit Switch for GMT140-5BB — B1370198","description":"\u003ch2\u003eGoodman B1370198 150°F Primary High-Limit Switch\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB1370198\u003c\/strong\u003e is a genuine OEM Goodman primary high-limit switch designed for the \u003cstrong\u003eGMT140-5BB\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. Positioned on the heat-exchanger side of the cabinet, this control continuously monitors supply-air temperature and opens the circuit at \u003cstrong\u003e150°F\u003c\/strong\u003e to shut down the burners if the furnace overheats, preventing heat-exchanger damage and unsafe operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 150°F\u003c\/li\u003e\n\u003cli\u003eFunction: Primary high-limit \/ overheat cutout\u003c\/li\u003e\n\u003cli\u003eType: Normally closed, auto-reset bimetal disc\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMT140-5BB and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370198\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause the primary limit is the furnace's first line of overheat defense, calibration accuracy matters. The genuine Goodman B1370198 is factory-set to 150°F with the correct disc size and mounting flange. Generic substitutes may trip early (causing short-cycling and cold-air complaints) or late (risking the heat exchanger). OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eTwo spade connectors and a pair of mounting screws. Replacement typically takes 10–15 minutes for a confident DIYer. Always de-energize the furnace at the breaker before servicing and confirm the switch orientation matches the original.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057148477811,"sku":"GOODMAN-B1370198","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150f-primary-limit-switch-for-gmt140-5bb-b1370198","provider":"National HVAC Parts","version":"1.0","type":"link"}