{"product_id":"oem-goodman-primary-limit-temperature-control-for-ams80603axab-20162904","title":"OEM Goodman Primary Limit Temperature Control for AMS80603AXAB — 20162904","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162904 Primary Limit Temperature Control\u003c\/strong\u003e is a genuine OEM high-limit safety switch for \u003cstrong\u003eAMS80603AXAB\u003c\/strong\u003e gas furnaces and compatible Goodman\/Amana models. Mounted on the heat exchanger bulkhead, it continuously monitors supply-air temperature and opens the circuit to the gas valve if the plenum overheats — the classic result of a dirty filter, blocked ducts, or a failed blower. This protects the heat exchanger from cracking and prevents a dangerous overheat condition.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: Primary (high) limit control, auto-reset\u003c\/li\u003e\n\u003cli\u003eFunction: Opens on excessive supply-air temperature\u003c\/li\u003e\n\u003cli\u003eFactory-calibrated trip and reset temperatures\u003c\/li\u003e\n\u003cli\u003eFits: AMS80603AXAB and compatible Goodman\/Amana 80% furnaces\u003c\/li\u003e\n\u003cli\u003eGenuine OEM replacement part\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The primary limit is a critical life-safety device tuned to this furnace's specific temperature rise profile. The OEM 20162904 carries the exact trip setpoint, disc size, and mounting bracket Goodman specified. Universal limits often require guesswork on setpoint and can trip early or, worse, too late. We strongly recommend OEM for this control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Easy (2\/5). Disconnect power, remove the two mounting screws and spade connectors, and install the replacement in the same orientation. Always correct any airflow restriction that caused the trip before restoring heat.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057686364531,"sku":"GOODMAN-20162904","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-ams80603axab-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}