{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gch950905dxaa-20162903","title":"OEM Goodman 150°F Primary Limit Switch for GCH950905DXAA — 20162903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control engineered for the \u003cstrong\u003eGCH950905DXAA\u003c\/strong\u003e gas furnace. This normally-closed switch continuously monitors heat-exchanger temperature and opens the burner circuit if the furnace exceeds its \u003cstrong\u003e150°F trip point\u003c\/strong\u003e, protecting the unit from overheating caused by restricted airflow, a dirty filter, or a failed blower. A tripped or failed limit switch is a common cause of short-cycling and no-heat calls.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003cli\u003eType: Primary high-limit (auto-reset)\u003c\/li\u003e\n\u003cli\u003eTrip Temperature: 150°F\u003c\/li\u003e\n\u003cli\u003eApplication: Gas furnace heat exchanger \/ blower compartment\u003c\/li\u003e\n\u003cli\u003eFit: Direct replacement for GCH950905DXAA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e switch is calibrated to the exact trip point and mounting footprint your furnace's control logic expects. Generic universal limits often carry looser tolerances and require terminal or bracket adaptation, which can lead to nuisance trips. Choose OEM for guaranteed fit and factory-spec safety performance; choose generic only when a matching aftermarket limit is verified for your model.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e A two-wire swap for anyone comfortable working inside a furnace cabinet. Always shut off power and gas at the disconnect before servicing. If the original switch tripped, diagnose and correct the underlying airflow or blower fault before returning the unit to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058066145651,"sku":"GOODMAN-10015","price":18.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gch950905dxaa-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}