{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gmnt090-4b-b1370198","title":"OEM Goodman 150°F Primary Limit Switch for GMNT090-4B — B1370198","description":"\u003ch2\u003eGoodman B1370198 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe B1370198 is the genuine OEM primary high-limit switch for the Goodman\/Amana \u003cstrong\u003eGMNT090-4B\u003c\/strong\u003e gas furnace. Located on the heat exchanger bulkhead, it continuously monitors supply-air temperature and opens the ignition\/gas circuit at 150°F if the furnace overheats due to restricted airflow, a failing blower, or a clogged filter. It is the furnace's main overheat safeguard.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Auto-reset primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eOpen temperature: 150°F (66°C)\u003c\/li\u003e\n\u003cli\u003eTerminals: 2 quick-connect blades\u003c\/li\u003e\n\u003cli\u003eFits: Goodman\/Amana GMNT090-4B and compatible furnace models\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 \u003cstrong\u003eOEM Goodman part\u003c\/strong\u003e carries the precise 150°F calibration and mounting geometry for this furnace, it restores factory safety performance exactly. Aftermarket universal limits may trip at the wrong temperature, causing short-cycling or leaving the unit under-protected. We recommend OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate (2\/5).\u003c\/strong\u003e Power off, remove the burner\/blower access panel, disconnect two wires, unscrew the switch from the heat exchanger plate, and reverse to install. Allow 15–20 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058130370931,"sku":"GOODMAN-11702","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gmnt090-4b-b1370198","provider":"National HVAC Parts","version":"1.0","type":"link"}