P2
AEG Defrost Mode Active / Low Temperature Protection

Dehumidifier displays P2 and stops dehumidifying, often in low temperatures

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Possible Causes

Room temperature below operating range, Evaporator heavily iced, Defrost sensor detecting prolonged low coil temperature, Restricted airflow

How to Fix / Troubleshooting

Safety: Unplug the unit before defrosting manually.

  • Check room temperature: Ensure the room is within the specified operating range (typically above 5°C). Move the unit to a warmer room if necessary.
  • Inspect for ice: Remove the front panel and check the evaporator for ice buildup. If iced, leave the unit unplugged until all ice melts.
  • Clean filter and coils: Clean the air filter and vacuum dust from the coils to improve airflow.
  • Restart: After defrosting and cleaning, restart the unit. If P2 appears constantly even in a warm room, test and possibly replace the defrost NTC sensor.
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Repair Difficulty

Easy 2/5

Required Part

Defrost NTC Sensor
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