F0179 fault in WEG CFW701 Drive

Categories: Faults & Alarm

F0179 fault in WEG CFW701 Drive indicates a Heatsink Fan Speed Fault. This means the main cooling fan has failed or jammed, triggering a trip to prevent overheating.

Cause:

  • Dirt on the blades and in the bearings of the fan.
  • Defective fan.
  • Defective fan power supply connection.

Note: This function can be disabled by setting parameter P0354 = 0.

Remedy:

Check and clean the fan module. Replace if damaged.