{"product_id":"oem-goodman-150-f-primary-limit-switch-for-acsh960905dxaa-20162903","title":"OEM Goodman 150°F Primary Limit Switch for ACSH960905DXAA — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e20162903\u003c\/strong\u003e primary high-limit switch is a factory overheat safety control for the \u003cstrong\u003eACSH960905DXAA\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger \/ supply plenum, it opens at approximately \u003cstrong\u003e150°F\u003c\/strong\u003e to shut off the burners if airflow is restricted (dirty filter, failed blower, blocked ducts), preventing heat-exchanger damage and unsafe operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit switch, auto-reset\u003c\/li\u003e\n\u003cli\u003eTrip Point: ~150°F open temperature\u003c\/li\u003e\n\u003cli\u003eFunction: De-energizes gas valve on plenum overheat\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (fits Amana equivalents)\u003c\/li\u003e\n\u003cli\u003eFits: ACSH960905DXAA and related Goodman 96% furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOEM Goodman\u003c\/strong\u003e limit switches match the exact 150°F trip temperature, insertion depth, and mounting flange of the original. Generic switches with the wrong setpoint can short-cycle the furnace or fail to protect the heat exchanger. For a safety control, always use the OEM-rated part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — typically a two-screw flange mount with spade terminals. Cut power before servicing, confirm continuity with a meter, and verify the furnace cycles normally after replacement.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Direct Replacement","offer_id":63032441209203,"sku":"20162903-GEN","price":13.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048143208819,"sku":"20162903","price":18.13,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-limit-switch-snap-disc-20162903_6b092297-fbd2-42c6-b377-b4bf1b9a1d46.jpg?v=1782945225","url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-acsh960905dxaa-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}