F0
AEG Low Refrigerant / System Inefficiency Detected

Dehumidifier displays F0 and does not dehumidify

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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.

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Possible Causes

Refrigerant leak in evaporator or condenser, Blocked capillary tube or expansion device, Severely dirty coils causing incorrect temperature readings, Faulty evaporator sensor misinterpreting system state

How to Fix / Troubleshooting

Safety: Do not attempt to open the sealed refrigeration circuit. Only certified refrigeration technicians may handle refrigerant.

  • Clean coils and filter: Remove and clean the air filter. Brush and vacuum both evaporator and condenser coils to ensure good heat exchange.
  • Check for icing: Run the unit and inspect the evaporator. If only a small section ices up or there is uneven frost, this can indicate low refrigerant.
  • Listen for compressor: Confirm that the compressor is running (low humming sound) when F0 appears. If not, see compressor-related entries.
  • Sensor check: Verify that the evaporator NTC sensor is properly attached and functioning; a bad sensor can falsely trigger F0.
  • Professional leak test: If cleaning and sensor checks do not resolve F0, contact an authorized AEG service center to perform a leak test, repair any leaks, and recharge the system.
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Repair Difficulty

Professional Required 5/5
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