{"product_id":"oem-goodman-primary-limit-temperature-control-for-amh81005cnbb-20162904","title":"OEM Goodman Primary Limit Temperature Control for AMH81005CNBB — 20162904","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/strong\u003e is a genuine OEM high-limit safety switch for the \u003cstrong\u003eAMH81005CNBB\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. Mounted on the heat-exchanger\/plenum bulkhead, the primary limit continuously monitors supply-air temperature. If the furnace overheats — most commonly from a dirty filter, closed registers, a failed blower, or restricted ductwork — the control opens to de-energize the gas valve and protect the heat exchanger from thermal damage. It is the furnace's principal over-temperature safety device.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 20162904\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit temperature control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic (recloses when temperature returns to normal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAction:\u003c\/strong\u003e Normally closed, opens on over-temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman \u0026amp; Amana AMH81005CNBB and related furnace platforms\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The genuine Goodman 20162904 is factory-set to the precise cut-out and cut-in temperatures for this furnace and uses the correct probe\/insertion length and mounting flange. A generic control with a different setpoint or probe depth can short-cycle the furnace on limit or allow the heat exchanger to overheat. As a critical safety and heat-exchanger protection component, the OEM part is strongly recommended.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Moderate (3\/5). Turn off power and gas, photograph and disconnect the wiring, remove the two mounting screws, and withdraw the sensing element from the airstream. Install the replacement in the identical orientation and insertion depth, then reconnect. Always address the root cause of overheating (replace the filter, verify blower operation, and check airflow) before restoring the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057637572979,"sku":"GOODMAN-5928","price":54.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-amh81005cnbb-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}