{"product_id":"oem-goodman-150f-primary-limit-switch-for-wgfm195070s3bac-20162903","title":"OEM Goodman 150F Primary Limit Switch for WGFM195070S3BAC — 20162903","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162903 Primary Limit Switch\u003c\/strong\u003e is a factory OEM safety control engineered for the Goodman \u003cstrong\u003eWGFM195070S3BAC\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This normally-closed, temperature-actuated switch monitors heat-exchanger temperature and opens the burner circuit at its \u003cstrong\u003e150°F\u003c\/strong\u003e trip point to prevent dangerous overheating — a critical protection any properly functioning furnace requires.\u003c\/p\u003e\u003cp\u003eA failing primary limit switch is a common cause of short-cycling, no-heat calls, and nuisance lockouts. Replacing it with the exact OEM part restores the manufacturer's calibrated trip temperature and keeps your furnace's safety chain intact.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 20162903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit switch (normally closed \/ auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 150°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (OEM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e WGFM195070S3BAC and select Goodman\/Amana gas furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Heat-exchanger limit protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003egenuine OEM Goodman\u003c\/strong\u003e switch is calibrated to the exact 150°F set point your furnace's control board expects. Aftermarket universal limits often trip early or late, causing intermittent heat loss and premature board wear. For a safety component, OEM tolerance matters — this part ships to factory specification.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e A two-wire, two-screw swap that most handy homeowners can complete in 10–15 minutes. Always disconnect furnace power at the breaker before servicing. If the switch trips again immediately after replacement, have a licensed technician inspect airflow and the heat exchanger.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058235883891,"sku":"GOODMAN-14305","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150f-primary-limit-switch-for-wgfm195070s3bac-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}