{"product_id":"oem-goodman-amana-150f-primary-limit-switch-for-amvm970804cnba-20162903","title":"OEM Goodman Amana 150F Primary Limit Switch for AMVM970804CNBA — 20162903","description":"\u003ch2\u003eGoodman 20162903 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe 20162903 is a genuine Goodman\/Amana primary high-limit switch rated at \u003cstrong\u003e150°F\u003c\/strong\u003e for the \u003cstrong\u003eAMVM970804CNBA\u003c\/strong\u003e modulating, variable-speed 97% AFUE gas furnace. Mounted in the heat-exchanger air stream, this temperature-sensing safety opens the control circuit if supply-air temperature climbs too high — typically from restricted airflow such as a dirty filter, blocked return, or failing blower. It protects the heat exchanger from overheating and cracking.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart type:\u003c\/strong\u003e Primary high-limit safety switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip temperature:\u003c\/strong\u003e 150°F (factory-calibrated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic reset on cool-down\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e Normally closed, opens on over-temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman\/Amana AMVM970804CNBA and related AMVM97 furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM number:\u003c\/strong\u003e 20162903\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe 150°F setpoint is matched to this furnace's heat-exchanger design. Installing a generic limit with a different trip temperature risks nuisance shutdowns or unsafe operation. The OEM 20162903 guarantees the correct calibration and mounting fit.\u003c\/p\u003e\u003ch3\u003eInstall difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e Disconnect the spade terminals and remove two mounting screws, then reverse to install. Cut gas and power first, and note wiring orientation before removal.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058006409587,"sku":"GOODMAN-20162903","price":27.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-amana-150f-primary-limit-switch-for-amvm970804cnba-20162903","provider":"National HVAC Parts","version":"1.0","type":"link"}