{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gmh950703bxad-20162903","title":"OEM Goodman 150°F Primary Limit Switch for GMH950703BXAD — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch — 150°F\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e20162903\u003c\/strong\u003e is a genuine OEM primary high-limit switch calibrated to open at \u003cstrong\u003e150°F\u003c\/strong\u003e, designed as a direct-fit replacement for the \u003cstrong\u003eGMH950703BXAD\u003c\/strong\u003e furnace. This safety control monitors heat-exchanger temperature and interrupts the gas valve if the furnace overheats — typically caused by a dirty filter, blocked ductwork, or a failing blower — protecting the heat exchanger from thermal damage.\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 limit \/ high-limit safety switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen temperature:\u003c\/strong\u003e 150°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits model:\u003c\/strong\u003e GMH950703BXAD (and compatible Goodman furnaces)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Overtemperature shutoff of the gas valve circuit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM 20162903 is factory-calibrated to the exact 150°F trip point Goodman specified for this heat exchanger. Generic or aftermarket limits with a different set point can cause premature shutdowns (short-cycling) or, worse, fail to trip early enough to protect the furnace. Because this is a life-safety control, matching the OEM temperature rating is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e The switch mounts with two screws and uses spade\/quick-connect terminals. Shut off power and gas before servicing, note wire positions before disconnecting, and confirm the replacement rating reads 150°F. If in doubt, use a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058113954163,"sku":"GOODMAN-11191","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gmh950703bxad-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}