{"product_id":"oem-goodman-primary-limit-temperature-control-for-ames921205dnaa-20162904","title":"OEM Goodman Primary Limit Temperature Control for AMES921205DNAA — 20162904","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162904 Primary Limit Temperature Control\u003c\/strong\u003e is the genuine OEM high-limit safety switch for the \u003cstrong\u003eAMES921205DNAA\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger or blower deck, this control continuously monitors supply-air temperature and opens the ignition circuit if the furnace overheats — protecting the heat exchanger from cracking and preventing a dangerous overheat condition. If your furnace short-cycles, locks out on high limit, or the burners shut off prematurely, a failed primary limit is a common cause.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 20162904\u003c\/li\u003e\n\u003cli\u003eType: Primary high-limit temperature control (auto-reset)\u003c\/li\u003e\n\u003cli\u003eFunction: Overheat safety cutout for the heating circuit\u003c\/li\u003e\n\u003cli\u003eCompatible Model: AMES921205DNAA (Goodman\/Amana 92% gas furnace)\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eLimit controls are calibrated to open and close at furnace-specific temperature setpoints. The genuine 20162904 carries Goodman's exact trip and reset temperatures, so the furnace's safety response matches factory design. Generic limits with the wrong setpoint can nuisance-trip or, worse, fail to cut off at a safe temperature. For a safety device, the OEM part is the right choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate\u003c\/strong\u003e — the limit is secured by a mounting bracket and two wire terminals. Basic hand tools are required. Shut off gas and power at the disconnect before servicing, and confirm terminal orientation before removing wires. A licensed HVAC technician should verify operation after replacement.\u003c\/p\u003e\u003cp\u003eHave your model and serial ready and email info@nationalhvacparts.com if you need help confirming fit.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057595302259,"sku":"GOODMAN-4776","price":35.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-ames921205dnaa-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}