{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gmh950905dxad-furnace-20162903","title":"OEM Goodman 150°F Primary Limit Switch for GMH950905DXAD Furnace — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903\u003c\/strong\u003e is an OEM primary high-temperature limit switch rated to open at approximately \u003cstrong\u003e150°F\u003c\/strong\u003e, designed for the \u003cstrong\u003eGMH950905DXAD\u003c\/strong\u003e gas furnace and related Goodman\/Amana models. Mounted on the heat-exchanger vestibule, this normally-closed safety control monitors supply-air temperature and interrupts the gas valve if the furnace overheats — protecting the heat exchanger from cracking and preventing unsafe operating conditions. If your furnace short-cycles on the heat call or trips out after a few minutes, a failed limit switch is a frequent culprit.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: 20162903\u003c\/li\u003e\n\u003cli\u003eType: Primary high-limit, auto-reset\u003c\/li\u003e\n\u003cli\u003eTrip temperature: ~150°F open\u003c\/li\u003e\n\u003cli\u003eContact configuration: Normally closed (opens on overheat)\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMH950905DXAD and related furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eGenuine \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e limit switches are calibrated to your furnace's exact trip temperature and mounting footprint. Generic limits with different set points or bracket geometry can nuisance-trip or fail to protect the heat exchanger. Because this is a safety control, we strongly recommend the OEM part.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eRated \u003cstrong\u003eEasy\u003c\/strong\u003e. Two mounting screws and two spade terminals; swap with power disconnected. Verify correct operation and temperature rise after installation. Recommended for a qualified HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058122637683,"sku":"GOODMAN-11451","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gmh950905dxad-furnace-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}