{"product_id":"oem-goodman-150-f-primary-limit-switch-for-wgfm195090s5dab-20162903","title":"OEM Goodman 150°F Primary Limit Switch for WGFM195090S5DAB — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e20162903\u003c\/strong\u003e is a \u003cstrong\u003e150°F primary limit switch\u003c\/strong\u003e for the \u003cstrong\u003eWGFM195090S5DAB\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger\/blower compartment, this bimetal-disc control monitors supply-air temperature and interrupts the burner circuit if the furnace overheats — typically caused by a dirty filter, blocked ducts, or a failing blower. It is auto-resetting, closing again once temperature returns to a safe range. Correct trip temperature is critical for both safety and comfort.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit switch (bimetal disc)\u003c\/li\u003e\n\u003cli\u003eTrip Point: 150°F (open on rise)\u003c\/li\u003e\n\u003cli\u003eReset: Automatic\u003c\/li\u003e\n\u003cli\u003eFunction: Supply-air overheat \/ heat-exchanger safety cutoff\u003c\/li\u003e\n\u003cli\u003eFits: Goodman WGFM195090S5DAB and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part: 20162903\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e limit is factory-set to the exact 150°F trip point specified for this furnace. Generic switches with a different rating can cause short-cycling on heat or fail to protect the heat exchanger. For a safety limit, match the OEM temperature spec.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Power down, disconnect the terminals, remove two mounting screws, and install the replacement. Correct any underlying airflow restriction before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058239586675,"sku":"GOODMAN-14388","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-wgfm195090s5dab-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}