{"product_id":"oem-goodman-primary-limit-temperature-control-for-amh80804bnbc-20162904","title":"OEM Goodman Primary Limit Temperature Control for AMH80804BNBC — 20162904","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162904 Primary Limit Temperature Control\u003c\/strong\u003e is the genuine OEM high-limit switch that monitors supply-air temperature in the heat-exchanger\/plenum area of \u003cstrong\u003eAMH80804BNBC\u003c\/strong\u003e furnaces. This automatic-reset control opens the gas valve and ignition circuit when temperatures climb above its safe setpoint — typically from restricted airflow, a dirty filter, a failing blower, or a closed duct — then closes again once the furnace cools. It is a primary combustion safety device, and a failed or drifting limit is a frequent cause of short-cycling and heat lockouts.\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 (opens on over-temp, recloses on cool-down)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e Normally closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman\/Amana AMH80804BNBC furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe primary limit is factory-set to your furnace's exact trip and reset temperatures and insertion depth. Genuine OEM ensures the calibration and mounting flange match precisely. Generic substitutes can trip early (short-cycling and no heat) or too late (overheating risk to the heat exchanger). On a safety control, OEM is the right call.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e Cut power to the furnace, remove the mounting screws, transfer the wiring, and seat the new control at the same depth and orientation. Straightforward mechanically — but always diagnose and correct the airflow issue that caused the trip, and have a qualified technician verify safe operation.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057620861299,"sku":"GOODMAN-5539","price":54.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-amh80804bnbc-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}