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The Goodman 20162904 is a genuine OEM primary limit temperature control for AMVC80803BXCA gas furnaces and compatible Goodman/Amana models. Mounted on the heat exchanger bulkhead, this primary limit continuously senses supply-air temperature and de-energizes the gas valve if the furnace exceeds its safe operating range — typically caused by restricted airflow, a dirty filter, or blower failure. It is a critical safety device that protects the heat exchanger from thermal damage and prevents overheating.
The OEM primary limit is factory-calibrated to the exact cut-out temperature your furnace requires and uses the correct bracket length so the sensing element sits at the right depth in the airstream. A generic control with the wrong trip point or probe depth can nuisance-trip on every call for heat or fail to protect the exchanger. For a primary safety control, OEM is strongly recommended.
Easy to Moderate — Cut power, disconnect the terminals, remove the two mounting screws, and install the replacement in the same orientation. Verify continuity and confirm the blower/filter airflow issue is resolved before returning to service.
Ships fast with tracking. Backed by our exact-fit guarantee.