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The Goodman 20162904 Primary Limit Temperature Control is a genuine OEM high-limit safety switch for VMES801005CXAA and compatible Goodman/Amana furnaces. Mounted on the heat exchanger or burner bulkhead, it continuously monitors supply-air temperature and shuts off the gas valve if the furnace overheats — protecting the heat exchanger from cracking and preventing unsafe operation. A failed limit control is a common cause of short-cycling, no-heat calls, and repeated lockouts.
The OEM 20162904 ships with the exact factory trip temperature and mounting geometry for your furnace. Generic limits often carry a different cut-out point or bracket profile, which can allow dangerous overheating or nuisance trips. On a life-safety component, OEM is the right choice.
Easy to Moderate — Turn off power, remove two mounting screws, disconnect the two spade terminals, and reverse for the new part. No calibration required. Estimated time: 15–25 minutes. Verify furnace cycles fully and reaches steady-state without tripping.