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The 0130F00038 is a genuine OEM auxiliary limit switch, color-coded light blue, for the Goodman / Amana AMVC961205DNAA variable-speed gas furnace. This secondary thermal safety backs up the primary limit, monitoring a specific zone of the furnace (such as the blower compartment or secondary heat exchanger) and interrupting the heating cycle if temperatures climb out of range. It is a key protection against overheating from restricted airflow.
Each Goodman limit color corresponds to a distinct calibrated trip temperature, and the auxiliary (light blue) differs from the pink primary. Using a mismatched generic switch risks nuisance lockouts or an unprotected heat exchanger. Genuine OEM ensures the exact temperature rating and mounting.
Easy (DIY-friendly, 15 min). Two screws, two spade terminals. Disconnect power first and correct any airflow restriction before returning the furnace to service.