F0183 fault in WEG CFW701 Drive indicates IGBT Overload + Temperature. This means the power modules overheated specifically while running at low speeds under heavy loads.
Cause:
- Too high inverter surrounding temperature.
- Operation with output frequencies < 10 Hz under overload conditions.
Remedy:
Verify ambient cooling path functionality. Avoid running the drive continuously below 10 Hz during high overload conditions.
