{"product_id":"oem-goodman-150-f-primary-limit-switch-for-ams950703bxab-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMS950703BXAB — 20162903","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control engineered for \u003cstrong\u003eAMS950703BXAB\u003c\/strong\u003e furnaces. This normally-closed thermal switch opens at approximately \u003cstrong\u003e150°F\u003c\/strong\u003e to de-energize the gas valve and protect the heat exchanger from overheating when airflow is restricted, a blower fails, or a filter is clogged. When your furnace short-cycles, trips on high limit, or won't fire, a failed limit switch is a common and inexpensive culprit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 20162903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit switch (auto-reset, normally closed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip point:\u003c\/strong\u003e 150°F open\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman \u0026amp; Amana AMS950703BXAB and compatible 96% AFUE furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Overheat safety shutoff for the heat exchanger\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is the factory OEM Goodman\/Amana part — calibrated to the exact trip temperature and mounting footprint your furnace was designed around. Generic universal limit switches often require re-drilling brackets or field-verifying trip points, which risks nuisance trips or, worse, a switch that fails to protect the exchanger. For a UL-listed safety device, OEM is the recommended choice.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eTwo-wire plug and a single mounting screw. A DIY-capable homeowner can swap it in 15–20 minutes with a nut driver. \u003cstrong\u003eAlways shut off power and gas before servicing.\u003c\/strong\u003e If the new switch trips again immediately, investigate airflow (dirty filter, closed vents, failing blower) before condemning the part.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057747149171,"sku":"GOODMAN-7325","price":19.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-ams950703bxab-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}