{"product_id":"oem-goodman-150-f-primary-limit-switch-for-wgfm195115s5dad-20162903","title":"OEM Goodman 150°F Primary Limit Switch for WGFM195115S5DAD — 20162903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control with a \u003cstrong\u003e150°F trip point\u003c\/strong\u003e, designed for the \u003cstrong\u003eWGFM195115S5DAD\u003c\/strong\u003e gas furnace. Mounted on the heat-exchanger bulkhead, this primary limit monitors supply-air temperature and opens the burner control circuit if the plenum overheats — typically from reduced airflow caused by a dirty filter, blocked ductwork, or a failing blower. Reliable limit protection prevents heat-exchanger damage and keeps the furnace within its safe operating range.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit safety switch (auto reset)\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 150°F\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (fits select Amana units)\u003c\/li\u003e\n\u003cli\u003eEquipment: Gas furnace\u003c\/li\u003e\n\u003cli\u003ePrimary Fit: WGFM195115S5DAD\u003c\/li\u003e\n\u003cli\u003eTerminals: Quick-connect spade\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 20162903\u003c\/strong\u003e is calibrated to Goodman's exact 150°F setpoint and matches the original mounting flange and probe length. Generic limits with a different trip temperature or probe depth can cause nuisance trips or fail to protect the heat exchanger. For accurate, safe cutoff, choose the genuine part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Turn off power, remove the access panel, unplug the spade terminals, back out the two mounting screws, and install the replacement in the same location and orientation. About 15 minutes. If the new limit still trips, address airflow: replace the filter, open registers, and confirm blower operation.\u003c\/p\u003e\u003cp\u003eKeep your Goodman furnace safe and reliable with an authentic primary limit switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058240733555,"sku":"GOODMAN-14424","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-wgfm195115s5dad-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}