{"product_id":"oem-goodman-primary-high-limit-temperature-control-gks90453bxaf-20162904","title":"OEM Goodman Primary High-Limit Temperature Control GKS90453BXAF — 20162904","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/strong\u003e is a genuine OEM high-limit safety switch for the Goodman \u003cstrong\u003eGKS90453BXAF\u003c\/strong\u003e gas furnace and compatible GKS90 series models. Mounted on the heat-exchanger\/blower deck, it continuously monitors plenum temperature and shuts off the burners if the furnace overheats — typically from restricted airflow, a dirty filter, or blower failure. This auto-reset control is the furnace's primary overheat protection and a common failure point on aging systems.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit temperature control (auto-reset snap-disc)\u003c\/li\u003e\n\u003cli\u003eFunction: Plenum overheat \/ high-limit burner cutoff\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4 in. quick-connect spades\u003c\/li\u003e\n\u003cli\u003eMounting: Bracket-mount to blower\/heat-exchanger deck\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GKS90453BXAF and select GKS90 furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part No.: 20162904\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM primary limit is factory-calibrated to the furnace's exact trip temperature and mounting geometry. Generic universal limits require field adjustment and can trip early or fail to protect if mismatched. For this safety-critical control, the genuine Goodman part is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5)\u003c\/strong\u003e — Disconnect power and gas, unplug the two spade terminals, remove the mounting screws, and install the new control in the same position and orientation. Roughly 15 minutes for a qualified technician; verify normal cycling after replacement.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058087838067,"sku":"GOODMAN-10584","price":54.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-high-limit-temperature-control-gks90453bxaf-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}