{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gmh951155dxag-20162903","title":"OEM Goodman 150°F Primary Limit Switch for GMH951155DXAG — 20162903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/strong\u003e is a genuine OEM high-limit safety control for the \u003cstrong\u003eGMH951155DXAG\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger or burner bulkhead, this normally-closed thermal switch monitors supply-air temperature and cuts power to the gas valve if the furnace overheats — protecting against blocked airflow, a failed blower, or a dirty filter. A tripped or failed limit switch is a common cause of short-cycling and no-heat calls; replacing it with the correct 150°F trip-point part restores safe operation.\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\u003eCategory:\u003c\/strong\u003e Limit Switch — Primary High Limit\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\u003eContact Type:\u003c\/strong\u003e Normally Closed (opens on rise)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e Gas Furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Fit:\u003c\/strong\u003e Goodman GMH951155DXAG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOEM (20162903):\u003c\/strong\u003e Calibrated to the exact 150°F trip point and mounting footprint this furnace requires — essential for a safety device. Recommended.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGeneric:\u003c\/strong\u003e Aftermarket limit switches must match both the trip temperature and mounting bracket. Never substitute a different temperature rating.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Power down the furnace, unplug the two spade terminals, remove the mounting screws, and swap in the new switch. About 15 minutes with a nut driver. Confirm the trip rating stamped on the old part matches before installing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058125554035,"sku":"GOODMAN-11547","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gmh951155dxag-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}