P2
Medisana Bucket Full / Drain System Fault

Dehumidifier shows P2 and stops; water bucket is full or appears full to the unit.

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Possible Causes

Full water bucket, Misaligned bucket not activating switch, Faulty bucket full float or switch, Blocked continuous drain hose causing backup

How to Fix / Troubleshooting

Safety: Unplug the dehumidifier before removing the bucket.

  • Empty bucket: Remove and empty the water bucket. Clean it with mild detergent if dirty.
  • Check float: Inspect the float inside the bucket (if present). Ensure it moves freely and is not stuck in the "full" position.
  • Bucket switch: Locate the bucket full switch in the unit. Press it manually to confirm it moves and clicks. If it is stuck, clean around it.
  • Continuous drain: If using a hose, ensure it is not kinked or blocked and that it slopes downward to a drain.
  • Replace switch/float: If P2 remains with an empty, correctly seated bucket, replace the bucket full switch or float assembly.
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Repair Difficulty

Easy 2/5

Required Part

Bucket Full Switch
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