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The Goodman 0130F00038 is a genuine OEM auxiliary high-limit switch, identified by its light blue housing, for the ACVC950714CXBA gas furnace and compatible Goodman/Amana models. This thermally-activated safety switch monitors temperature in the blower or burner compartment and opens the circuit if the furnace overheats — typically caused by restricted airflow from a dirty filter, blocked return, or failed blower motor. When it trips, it cuts power to the gas valve to prevent heat-exchanger damage and unsafe operation.
Limit switches are calibrated to a precise trip temperature, and the light-blue color codes that exact set point. Installing a genuine OEM 0130F00038 guarantees the correct trip threshold — a generic or wrong-color switch can trip too early (no heat) or too late (a real safety hazard). For a safety device, OEM is the only responsible choice.
Easy (1 of 5). About 10–15 minutes. Disconnect power, note and transfer the two wire leads, remove the mounting screws, and install the new switch in the same orientation. Always confirm model/serial compatibility before installing a safety component, and address the underlying airflow restriction that caused the trip.