F6
SMEG Inverter Module / Compressor Drive Fault

F6 code; compressor speed control malfunction on inverter models

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Failed IGBT module on outdoor PCB, Shorted compressor, Overheated inverter heat sink due to blocked airflow, Poor earthing or power quality issues

How to Fix / Troubleshooting

Safety first: This involves high-voltage electronics. Turn off power and do not touch inverter components without proper training.

  • Check outdoor ventilation: Ensure the outdoor unit vents are not blocked and that the heat sink area is clean.
  • Inspect PCB visually: Look for burnt components or cracked solder joints on the inverter board.
  • Verify earthing: Confirm the earth wire is securely connected to the outdoor chassis.
  • Do not attempt board-level repair: Inverter faults typically require full PCB replacement.

Contact a qualified SMEG service technician to test compressor windings and replace the inverter PCB if necessary.

Advertisements

Repair Difficulty

Professional Required 5/5

Required Part

Outdoor Inverter Power Module PCB
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements