{"product_id":"oem-goodman-primary-limit-temperature-control-for-gks90904cxaf-20162904","title":"OEM Goodman Primary Limit Temperature Control for GKS90904CXAF — 20162904","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/strong\u003e is a genuine OEM high-limit safety switch for the \u003cstrong\u003eGKS90904CXAF\u003c\/strong\u003e gas furnace and related Goodman\/Amana models. Mounted on the heat-exchanger bulkhead, the primary limit continuously monitors supply-plenum temperature. If airflow is lost or the furnace overheats, it opens to shut down the gas valve, protecting the heat exchanger from cracking and preventing dangerous overheating. As the primary limit, it is the furnace's central over-temperature guardian.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit temperature control (auto-reset, normally closed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Plenum \/ heat-exchanger over-temperature safety cutout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensing:\u003c\/strong\u003e Bimetal disc calibrated to factory trip temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e Quick-connect spade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Factory bracket on heat-exchanger panel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GKS90904CXAF and compatible gas furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman OEM (Amana compatible)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine \u003cstrong\u003e20162904\u003c\/strong\u003e is calibrated to the precise cutout temperature and sensing-element length this furnace requires. The primary limit is the single most important thermal safety on the appliance — an incorrectly-rated generic can allow the heat exchanger to overheat and crack (a CO hazard) or trip early and leave the home without heat. OEM guarantees the correct setpoint, exact bracket fit, and preserved UL listing.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5)\u003c\/strong\u003e — Turn off gas and power, photograph the wiring, remove the mounting screws, and transfer the spade connectors to the new control in the same orientation. Ensure the sensing element seats correctly in the airstream. Because a mis-set primary limit is a safety issue, professional installation and a heat-rise check are recommended.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058097111411,"sku":"GOODMAN-10809","price":54.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-gks90904cxaf-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}