{"product_id":"oem-goodman-150-f-primary-limit-switch-for-ameh800805-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMEH800805 — 20162903","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162903 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-temperature safety control for the Amana\/Goodman \u003cstrong\u003eAMEH800805CNAA\u003c\/strong\u003e gas furnace. This normally-closed thermal switch opens at approximately \u003cstrong\u003e150°F\u003c\/strong\u003e to cut power to the gas valve if the heat exchanger overheats — a critical safety device that protects against cracked heat exchangers and fire hazards from restricted airflow or blower failure.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Primary high-limit \/ thermal cut-off\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 150°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally closed\u003c\/li\u003e\n\u003cli\u003eFitment: Amana\/Goodman AMEH800805CNAA furnace\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162903\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a \u003cstrong\u003efactory-calibrated OEM switch\u003c\/strong\u003e with the exact trip point and mounting bracket your furnace requires. Because a limit switch is a safety component, using the correct OEM trip temperature is essential — a generic switch with the wrong setpoint can nuisance-trip (short cycling) or, worse, fail to protect the heat exchanger. Insist on OEM for safety-critical controls.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Cut power, remove the two mounting screws, disconnect the spade terminals, and swap in the new switch. Roughly a 10–15 minute repair. Always confirm proper airflow and filter condition, since a tripping limit often signals an underlying airflow problem.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057583604083,"sku":"GOODMAN-4426","price":18.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-ameh800805-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}