{"product_id":"oem-goodman-150-f-primary-limit-switch-for-wgfm28070v4bxaa-20162903","title":"OEM Goodman 150°F Primary Limit Switch for WGFM28070V4BXAA — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman 20162903 is a genuine OEM primary limit switch rated at \u003cstrong\u003e150°F\u003c\/strong\u003e for the \u003cstrong\u003eWGFM28070V4BXAA\u003c\/strong\u003e gas furnace. This automatic-reset high-limit control senses supply-air temperature and opens the burner circuit if the furnace overheats — typically from restricted airflow, a dirty filter, or blower problems — then closes again once temperatures normalize. It protects the heat exchanger from thermal damage and is a key safety component in the furnace's control chain.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003cli\u003eComponent: Primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 150°F\u003c\/li\u003e\n\u003cli\u003eReset Type: Automatic\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman\u003c\/li\u003e\n\u003cli\u003eEquipment Type: Gas Furnace\u003c\/li\u003e\n\u003cli\u003eFits Model: WGFM28070V4BXAA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM Goodman 20162903 is factory-calibrated to the specified 150°F setpoint with the correct mounting flange and terminal layout for this furnace. Generic limit switches with a different temperature rating can cause nuisance shutdowns or fail to protect the heat exchanger. For a temperature-critical safety part, the exact-fit OEM switch is the right choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eRated \u003cstrong\u003eEasy (2\/5)\u003c\/strong\u003e. Shut off power and gas, photograph and disconnect the wiring, remove the mounting screws, install the 20162903 in the same position, reconnect the leads, and verify normal operation. Correct any airflow restriction that may have caused the original trip.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058241290611,"sku":"GOODMAN-14434","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-wgfm28070v4bxaa-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}