{"product_id":"oem-goodman-150-f-primary-limit-switch-for-acvm970603bnba-20162904","title":"OEM Goodman 150°F Primary Limit Switch for ACVM970603BNBA — 20162903","description":"\u003cp\u003eThe genuine Goodman \u003cstrong\u003e20162903 Primary Limit Switch\u003c\/strong\u003e is a factory safety control engineered for the \u003cstrong\u003eACVM970603BNBA\u003c\/strong\u003e modulating variable-speed gas furnace and compatible Goodman\/Amana models. This normally-closed high-limit switch monitors heat-exchanger temperature and opens the burner circuit at \u003cstrong\u003e150°F\u003c\/strong\u003e to prevent overheating, protecting the cabinet, blower, and surrounding components from heat damage.\u003c\/p\u003e\u003cp\u003eWhen a furnace short-cycles, trips on limit, or shuts down during a heating call, a failed or out-of-calibration primary limit is a common cause. Installing the correct OEM-spec switch restores reliable, safe operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Primary high-limit \/ temperature switch\u003c\/li\u003e\n\u003cli\u003eOpen temperature: 150°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally closed (N.C.)\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana OEM\u003c\/li\u003e\n\u003cli\u003eOEM part number: 20162903\u003c\/li\u003e\n\u003cli\u003eFits: ACVM970603BNBA and compatible furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e limit switch is calibrated to the exact trip temperature and mounting footprint specified by the manufacturer, ensuring proper safety response and a drop-in fit. Generic universal limits may carry a different open temperature or bracket and can cause nuisance trips or fail safety certification. For a furnace's primary safety control, OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Two-screw mount with spade terminals — typically a 10–15 minute repair. \u003cem\u003eAlways disconnect power at the disconnect or breaker before servicing. If you are unsure, contact a licensed HVAC technician.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057493492083,"sku":"GOODMAN-3005","price":13.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-acvm970603bnba-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}