{"product_id":"oem-goodman-primary-limit-temperature-control-for-ams80604bxab-20162904","title":"OEM Goodman Primary Limit Temperature Control for AMS80604BXAB — 20162904","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/strong\u003e is a genuine OEM high-limit safety switch for \u003cstrong\u003eGoodman and Amana AMS80604BXAB\u003c\/strong\u003e 80% single-stage gas furnaces. Mounted on the heat-exchanger bulkhead, this auto-reset limit continuously monitors supply-air temperature and shuts off the gas valve if the furnace overheats — protecting the heat exchanger from cracking due to restricted airflow, a dirty filter, or blower failure.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Primary auto-reset high-limit temperature control\u003c\/li\u003e\n\u003cli\u003eReset: Automatic (recloses when temperature returns to normal)\u003c\/li\u003e\n\u003cli\u003eContacts: Normally closed, opens on over-temp\u003c\/li\u003e\n\u003cli\u003eMount: Bulkhead \/ heat-exchanger surface bracket\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 20162904\u003c\/li\u003e\n\u003cli\u003ePrimary fit: AMS80604BXAB (80% single-stage furnace)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe primary limit is factory-calibrated to the AMS80604's exact cutout temperature. Goodman OEM controls trip at the engineered setpoint; a generic replacement with a different setpoint can cause repeated nuisance lockouts or, worse, allow dangerous overheating. For primary safety controls, always install the OEM-spec part.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate (2 of 5).\u003c\/strong\u003e Usually two mounting screws and two spade terminals, but correct placement against the heat exchanger is essential. Disconnect power and gas before servicing, and diagnose airflow before assuming the limit is faulty — frequent trips usually signal a dirty filter, blocked coil, or weak blower. When unsure, consult a licensed HVAC technician.\u003c\/p\u003e\u003cp\u003eFits Goodman and Amana furnaces on the AMS80604 platform. Verify your model and part number before ordering.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057687937395,"sku":"GOODMAN-6834","price":35.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-ams80604bxab-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}