{"product_id":"oem-goodman-primary-limit-temperature-control-for-ams950453bxa-20162904","title":"OEM Goodman Primary Limit Temperature Control for AMS950453BXA — 20162904","description":"\u003ch2\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/h2\u003e\u003cp\u003eThe OEM Goodman \u003cstrong\u003e20162904\u003c\/strong\u003e primary limit temperature control is the main high-limit safety device for the \u003cstrong\u003eAMS950453BXA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. Mounted on the heat exchanger or blower deck, it continuously monitors supply-air temperature. If airflow is restricted—by a dirty filter, failed blower, or blocked ducts—and the plenum overheats, the limit opens the circuit to shut off the burners, protecting the heat exchanger from cracking and preventing a fire hazard. It also coordinates blower operation on some models.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary (main) high-limit temperature control\u003c\/li\u003e\n\u003cli\u003eFunction: Opens burner circuit on plenum overtemperature\u003c\/li\u003e\n\u003cli\u003eReset: Automatic (closes when temperature normalizes)\u003c\/li\u003e\n\u003cli\u003eMounting: OEM bracket-fit for AMS950453BXA\u003c\/li\u003e\n\u003cli\u003eCalibration: Factory-set trip temperature\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine OEM 20162904 uses Goodman's precise trip and reset temperatures and the correct bracket geometry. Generic substitutes with different ratings can nuisance-trip, short-cycle the furnace, or—worse—fail to protect the heat exchanger. Because this is the primary safety limit, OEM is strongly recommended and helps preserve warranty coverage.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Usually two mounting screws and two wire connectors. Shut off gas and electrical power before servicing. If the furnace repeatedly trips on limit, check for airflow restrictions—replace the filter and confirm blower operation—rather than defeating the safety control.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057739055475,"sku":"GOODMAN-7294","price":35.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-ams950453bxa-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}