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The Goodman 0130F00038 Auxiliary Limit Switch is a genuine OEM safety control designed for the Goodman ADVC80805CXBB gas furnace. This light-blue-coded thermal limit monitors heat-exchanger and plenum temperatures, opening the control circuit and shutting down the burners if the furnace overheats due to restricted airflow, a dirty filter, or blower failure. Installing the correct auxiliary limit is essential for safe, code-compliant furnace operation.
This is a genuine Goodman OEM component, factory-calibrated to the exact trip temperature specified for the ADVC80805CXBB. Aftermarket generic limits may carry a different temperature rating or reset style, which can cause nuisance lockouts or, worse, fail to protect the heat exchanger. For a safety control, we strongly recommend the OEM part.
Easy (2/5). A basic swap for a homeowner comfortable working with the power disconnected — remove two mounting screws, transfer the spade connectors, and reinstall. Always shut off gas and electric power before servicing. If your furnace repeatedly trips the limit, diagnose the underlying airflow problem before returning to service.