{"product_id":"oem-goodman-primary-limit-temperature-control-for-amh81005cxbb-20162904","title":"OEM Goodman Primary Limit Temperature Control for AMH81005CXBB — 20162904","description":"\u003cp\u003eThe Goodman 20162904 Primary Limit Temperature Control is the main high-limit safety switch for the Goodman\/Amana AMH81005CXBB gas furnace and matching 80% AFUE models. Mounted on the heat exchanger bulkhead, this auto-reset control continuously senses supply-air temperature and interrupts the burner circuit if the furnace exceeds its safe operating limit — typically caused by restricted airflow, a failed blower, or a clogged filter.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit control, snap-disc (normally closed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic — recloses once temperature returns to normal range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit:\u003c\/strong\u003e 24VAC control interrupt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount:\u003c\/strong\u003e Bulkhead \/ heat-exchanger panel with factory bracket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman\/Amana AMH81005CXBB and related furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 20162904 (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePrimary limits are factory-matched to each furnace's specific trip point and bracket geometry. The OEM 20162904 guarantees correct temperature calibration and a bolt-in fit. Universal snap-discs exist but require verifying trip temperature and often modifying the bracket — not recommended on a primary safety control.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy–Moderate (2\/5).\u003c\/strong\u003e Remove the burner\/blower access panel, disconnect two low-voltage leads, and swap the bracketed control. Cut power at the breaker first. If the new limit trips, address the underlying airflow restriction rather than jumping the switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057640227187,"sku":"GOODMAN-5971","price":35.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-amh81005cxbb-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}