{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gmh950905dxac-20162903","title":"OEM Goodman 150°F Primary Limit Switch for GMH950905DXAC — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman 20162903 is a genuine OEM primary high-limit switch with a \u003cstrong\u003e150°F\u003c\/strong\u003e trip point, designed for the \u003cstrong\u003eGMH950905DXAC\u003c\/strong\u003e 96% AFUE furnace and compatible Goodman\/Amana models. Mounted on the heat exchanger or blower deck, this auto-reset limit monitors supply-air temperature and cuts power to the gas valve if the furnace overheats — typically caused by restricted airflow such as a dirty filter, blocked ducts, or a failing blower. It protects the heat exchanger from cracking and prevents unsafe operating temperatures.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 150°F\u003c\/li\u003e\n\u003cli\u003eReset: Automatic\u003c\/li\u003e\n\u003cli\u003eFunction: Supply-air over-temperature cutout\u003c\/li\u003e\n\u003cli\u003eFit: Goodman GMH950905DXAC and compatible gas furnaces\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4\" quick-connect spade\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 20162903\u003c\/strong\u003e guarantees the exact 150°F calibration and mounting flange fit Goodman specifies for this model. A \u003cstrong\u003egeneric equivalent\u003c\/strong\u003e matches the trip rating at a lower cost. Both are new and tested.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eRated \u003cstrong\u003eEasy\u003c\/strong\u003e. Shut off power, transfer the two spade terminals, and re-secure the mounting screws in the same orientation. Verify the trip temperature stamped on the switch matches 150°F. If the new limit trips during normal operation, check the filter, ductwork, and blower before assuming a bad switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058122244467,"sku":"GOODMAN-11439","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gmh950905dxac-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}