{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gks90905dxad-20162903","title":"OEM Goodman 150°F Primary Limit Switch for GKS90905DXAD — 20162903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM 150°F high-temperature safety control for the \u003cstrong\u003eGoodman GKS90905DXAD\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger or blower housing, this normally-closed switch opens the circuit if supply-air temperature exceeds its 150°F trip point, shutting down the burners to prevent overheating. A failed or nuisance-tripping limit switch is a common cause of short-cycling, no-heat calls, and the furnace running the blower without ignition.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 150°F (primary high-limit)\u003c\/li\u003e\n\u003cli\u003eContact Type: Normally closed, auto-reset\u003c\/li\u003e\n\u003cli\u003eFunction: Over-temperature safety shutoff\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman GKS90905DXAD furnace\u003c\/li\u003e\n\u003cli\u003eType: Direct-fit OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eLimit switches are calibrated to a specific temperature and mounting footprint. The OEM 20162903 matches Goodman's exact 150°F rating and bracket pattern, so it seats correctly and protects the heat exchanger as designed. Generic universal limits with the wrong trip point or reach can allow dangerous overheating or cause false trips — OEM is the safe choice for this safety-critical part.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate\u003c\/strong\u003e — disconnect power, remove two mounting screws, transfer the wire terminals, and reinstall. Verify the trip temperature stamped on the old switch matches before installing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058099503475,"sku":"GOODMAN-10876","price":18.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gks90905dxad-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}