{"product_id":"oem-goodman-primary-limit-control-for-vms80604bnaa-20162904","title":"OEM Goodman Primary Limit Control for VMS80604BNAA — 20162904","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/strong\u003e is a genuine OEM high-limit safety switch built for the \u003cstrong\u003eGoodman VMS80604BNAA\u003c\/strong\u003e gas furnace. Mounted on the heat exchanger's supply-air side, this limit control continuously monitors plenum temperature and cuts power to the gas valve if the furnace overheats — typically caused by a dirty filter, blocked ductwork, or a failing blower. When the primary limit trips repeatedly or fails open, the furnace won't fire; when it fails closed, the safety protection is lost.\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: Shuts off heat on over-temperature to protect the heat exchanger\u003c\/li\u003e\n\u003cli\u003eFits Model: VMS80604BNAA (and compatible Goodman\/Amana furnaces)\u003c\/li\u003e\n\u003cli\u003eMounting: Heat exchanger \/ supply plenum bracket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis \u003cstrong\u003egenuine Goodman OEM limit control\u003c\/strong\u003e is calibrated to the exact trip and reset temperatures your furnace board expects. Generic limits with mismatched setpoints can nuisance-trip or, worse, fail to protect the heat exchanger. For a life-safety component, OEM is strongly advised.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy to Moderate\u003c\/h3\u003e\u003cp\u003eTurn off power at the furnace, remove the two mounting screws, disconnect the wire terminals, and install the replacement in the same orientation. A multimeter continuity check confirms the old switch is at fault. Most handy homeowners can complete this in 15–30 minutes, but call a pro if repeated trips point to an airflow or heat-exchanger issue.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058210357619,"sku":"GOODMAN-13701","price":35.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-control-for-vms80604bnaa-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}