{"product_id":"oem-goodman-150-f-primary-limit-switch-for-wgfm195070s4cac-20162903","title":"OEM Goodman 150°F Primary Limit Switch for WGFM195070S4CAC — 20162903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control rated to open at \u003cstrong\u003e150°F\u003c\/strong\u003e, designed for the \u003cstrong\u003eWGFM195070S4CAC\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger or plenum, it monitors supply-air temperature and shuts off the burners if the furnace overheats — protecting the heat exchanger and preventing unsafe operation. A failed limit switch is a common cause of short-cycling, no-heat calls, or a furnace that runs the blower but won't fire.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 20162903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Primary High-Limit Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 150°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e WGFM195070S4CAC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (OEM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e Gas Furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM 20162903 is calibrated to Goodman's exact trip temperature and mounting footprint. Generic limit switches with a different setpoint or bracket can nuisance-trip, fail to protect the heat exchanger, or mount incorrectly. Because this is a primary safety device, the genuine Goodman part is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Cut power, disconnect the two spade terminals, remove the mounting screws, and install the new switch. Verify orientation matches the original. A multimeter check confirms continuity after install.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058237063539,"sku":"GOODMAN-14341","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-wgfm195070s4cac-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}