{"product_id":"oem-goodman-150-f-primary-limit-switch-for-amh80805cnbb-20162903","title":"OEM Goodman 150°F Primary Limit Switch for AMH80805CNBB — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe OEM Goodman \u003cstrong\u003e20162903\u003c\/strong\u003e primary high-limit switch protects the Amana \u003cstrong\u003eAMH80805CNBB\u003c\/strong\u003e 80,000 BTU gas furnace from overheating. Mounted on the heat exchanger partition, this 150°F auto-reset control opens the circuit if supply-air temperature climbs above its rated setpoint — typically caused by a dirty filter, blocked ductwork, or a failing blower — and closes again automatically once temperatures return to safe levels.\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\u003c\/li\u003e\n\u003cli\u003eReset: Automatic (snap-disc)\u003c\/li\u003e\n\u003cli\u003eFit: Amana\/Goodman AMH80805CNBB furnace\u003c\/li\u003e\n\u003cli\u003ePart number: 20162903 (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eGenuine OEM ensures the \u003cstrong\u003eexact 150°F calibration\u003c\/strong\u003e the furnace board expects. Aftermarket limits with the wrong setpoint cause short cycling or, worse, allow the heat exchanger to run hotter than designed. This factory part drops in without recalibration.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Remove the two mounting screws, disconnect the spade terminals, and swap in the new switch — about 15 minutes with the furnace powered down. Verify airflow and filter condition to avoid repeat trips.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057625350515,"sku":"GOODMAN-5621","price":27.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-amh80805cnbb-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}