{"product_id":"oem-goodman-150-f-primary-limit-switch-for-ames801205dxaa-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMES801205DXAA — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman 20162903 is a genuine OEM primary high-temperature limit switch engineered for the Amana \u003cstrong\u003eAMES801205DXAA\u003c\/strong\u003e 80% AFUE gas furnace and other compatible Goodman\/Amana multi-position models. Mounted on the heat exchanger vestibule panel, this normally-closed thermal switch continuously monitors supply-air temperature and interrupts power to the gas valve if the furnace overheats — a critical safety component that protects the heat exchanger from cracking due to restricted airflow, a dirty filter, or a failed blower.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: 20162903 (OEM Goodman \/ Amana)\u003c\/li\u003e\n\u003cli\u003eType: Primary \/ main high-limit switch, normally closed\u003c\/li\u003e\n\u003cli\u003eTrip point: opens at 150°F, auto-reset on cool-down\u003c\/li\u003e\n\u003cli\u003eMounting: snap-disc, panel\/bracket mount\u003c\/li\u003e\n\u003cli\u003eEquipment: gas furnace, 80% AFUE\u003c\/li\u003e\n\u003cli\u003eCompatibility: AMES801205DXAA and related Goodman\/Amana furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine OEM 20162903 is calibrated to the exact trip temperature specified for your furnace's heat exchanger, ensuring correct lockout behavior and preserving your equipment warranty. Aftermarket snap-discs are cheaper but often carry a different calibration or mounting footprint, which can cause nuisance trips or, worse, fail to protect the exchanger. For a life-safety limit control we recommend the OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eRating: Easy (1\/5).\u003c\/strong\u003e Replacement is a two-wire, single-screw job that most homeowners can complete in under 15 minutes. Turn off power at the furnace switch and breaker, photograph the wiring, transfer the two spade terminals to the new switch, and remount. If the old limit tripped, always diagnose the root cause (airflow restriction) before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057592582515,"sku":"GOODMAN-4690","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-ames801205dxaa-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}