{"product_id":"oem-goodman-150-f-primary-auto-limit-switch-for-vms80805cnaa-20162903","title":"OEM Goodman 150°F Primary Auto Limit Switch for VMS80805CNAA — 20162903","description":"\u003cp\u003eThe genuine OEM Goodman \u003cstrong\u003e20162903 Primary Limit Switch\u003c\/strong\u003e is the main high-limit heat sensor for the Goodman \u003cstrong\u003eVMS80805CNAA\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger\/blower deck, it opens at approximately \u003cstrong\u003e150°F\u003c\/strong\u003e to shut off the burners if supply-air temperature climbs too high — typically from restricted airflow, a dirty filter, or a failed blower. It automatically resets once the furnace cools to a safe temperature.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: ~150°F (auto reset)\u003c\/li\u003e\n\u003cli\u003eFunction: Over-temperature burner cutoff\u003c\/li\u003e\n\u003cli\u003eFits: Goodman VMS80805CNAA and compatible 80% AFUE furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe 150°F calibration and disc geometry are matched to this furnace. OEM 20162903 ensures the correct trip point and mounting bracket; a generic limit with a different set point can cause nuisance shutdowns or, worse, fail to protect the heat exchanger.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Two screws and two wire terminals. Cut power before servicing. If the limit is tripping, correct the airflow restriction rather than simply replacing the part.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058211504499,"sku":"GOODMAN-13732","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-auto-limit-switch-for-vms80805cnaa-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}