{"product_id":"oem-goodman-170-f-primary-limit-switch-for-gmnt120-5-b1370188","title":"OEM Goodman 170°F Primary Limit Switch for GMNT120-5 — B1370188","description":"\u003ch2\u003eGoodman B1370188 170°F Primary Limit Switch\u003c\/h2\u003e\u003cp\u003eThe genuine Goodman B1370188 is the primary high-limit switch for the GMNT120-5 gas furnace and compatible Goodman\/Amana models. Mounted on the heat exchanger or partition panel, it continuously monitors supply-air temperature and shuts off the burners if the furnace overheats from low airflow, a dirty filter, or a failed blower. This factory OEM control matches the original 170°F calibration and mounting footprint precisely.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 170°F (opens on rise)\u003c\/li\u003e\n\u003cli\u003eReset type: Automatic reset\u003c\/li\u003e\n\u003cli\u003eFunction: Primary high-limit \/ overheat protection\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4\" quick-connect spade\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMNT120-5 and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part #: B1370188\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause the primary limit is the furnace's main overheat safeguard, OEM calibration matters. The B1370188 is set and tested to 170°F at the factory; generic switches with different trip points can cause short-cycling or allow the heat exchanger to run too hot. OEM is the safe, reliable choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Kill the power, disconnect the two wires, remove the mounting screws, and install the new switch on the same bracket. Basic tools only. Confirm the model and correct orientation before restoring power.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058131747187,"sku":"GOODMAN-11752","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-170-f-primary-limit-switch-for-gmnt120-5-b1370188","provider":"National HVAC Parts","version":"1.0","type":"link"}