E8
Medisana Fan Motor Fault / Fan Feedback Error

Dehumidifier displays E8; fan may not run or runs erratically.

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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

Seized or obstructed fan, Failed fan motor capacitor (AC fan types), Defective DC fan motor or hall sensor, Loose fan connector on PCB

How to Fix / Troubleshooting

Safety: Unplug the unit before working near the fan blades.

  • Check for obstructions: Remove the grille and inspect the fan wheel for dust buildup, foreign objects, or warped plastic. Clear any obstruction.
  • Spin test: Gently spin the fan by hand. It should rotate freely. If it is stiff or grinding, the fan motor is likely failing and should be replaced.
  • Electrical check: Inspect the fan motor connector on the PCB. Reseat it firmly. Look for burnt or discolored pins.
  • Capacitor (AC fan): If your Medisana dehumidifier uses an AC fan motor with a run capacitor, locate the capacitor and check for bulging or leakage. Replace with the same µF rating and voltage if defective.
  • Replace fan motor: If E8 persists and the fan does not run properly, replace the fan motor assembly with a Medisana-compatible fan motor.
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Repair Difficulty

Medium 3/5

Required Part

Fan Motor Assembly
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