{"product_id":"oem-goodman-primary-limit-switch-m4-for-gmh951155dxaa-20162906","title":"OEM Goodman Primary Limit Switch M4 for GMH951155DXAA — 20162906","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162906 M4 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-temperature safety control engineered for the Goodman \u003cstrong\u003eGMH951155DXAA\u003c\/strong\u003e 95% AFUE gas furnace. This normally-closed thermal switch continuously monitors heat-exchanger temperature and instantly interrupts the burner circuit if the furnace overheats — protecting your equipment and home from unsafe conditions caused by restricted airflow, a dirty filter, or blower failure.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 20162906\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit switch (M4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Normally closed, auto-reset thermal cutout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e Goodman GMH951155DXAA and compatible 95% two-stage furnaces\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\u003eThis is the \u003cstrong\u003efactory-original Goodman part\u003c\/strong\u003e, calibrated to the exact trip temperature specified for your furnace's heat exchanger. Generic aftermarket limit switches may carry a lower price but often ship with an incorrect temperature rating or mounting profile, which can cause nuisance shutdowns or, worse, fail to protect the unit. For a safety-critical component, we recommend the OEM switch.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e The limit switch is typically secured with two screws and a pair of quick-connect terminals. Always shut off power and gas before servicing. Most homeowners with basic tools can complete the swap in 15–20 minutes; if you are unsure, consult a licensed HVAC technician.\u003c\/p\u003e\u003cp\u003eRestore your Goodman furnace to safe, reliable operation with a genuine 20162906 primary limit switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058123424115,"sku":"GOODMAN-11475","price":9.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-switch-m4-for-gmh951155dxaa-20162906","provider":"National HVAC Parts","version":"1.0","type":"link"}