{"product_id":"oem-goodman-primary-limit-switch-150-f-for-gmh950905dxae-20162903","title":"OEM Goodman Primary Limit Switch 150°F for GMH950905DXAE — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman 20162903 is a genuine OEM primary high-temperature limit switch rated at \u003cstrong\u003e150°F\u003c\/strong\u003e, used on the \u003cstrong\u003eGMH950905DXAE\u003c\/strong\u003e 95% AFUE furnace. Mounted on the heat exchanger housing, it monitors supply-air temperature and opens the control circuit if the furnace overheats — typically from a dirty filter, blocked ductwork, or a failed blower. This protects the heat exchanger from thermal damage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: 20162903\u003c\/li\u003e\n\u003cli\u003eType: Primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 150°F (auto reset)\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMH950905DXAE and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eFunction: Supply-air over-temperature safety cutout\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe 150°F trip point and mounting bracket geometry are specific to this furnace. Genuine OEM switches guarantee the correct calibration and fit, avoiding nuisance lockouts or delayed protection. Universal generics often require bracket modification and may trip at the wrong temperature. OEM is recommended for this safety control.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — two-screw mount with quick-connect terminals, typically 15–20 minutes. Disconnect power before servicing. If the old limit was tripping, correct the airflow restriction (filter, ducting, blower) before returning the unit to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058122998131,"sku":"GOODMAN-11463","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-switch-150-f-for-gmh950905dxae-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}