Kärcher
Imbalanced Brush Roller or Fan
Cordless vacuum vibrates excessively, especially at high power
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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
Brush roller loaded with uneven debris, Bent brush roller shaft, Damaged motor fan blades, Foreign object stuck in fan
How to Fix / Troubleshooting
Safety first: Remove the battery before inspecting moving parts.
- Clean brush roller: Remove all hair and debris from the roller and end caps. Ensure it is straight and not warped.
- Test without nozzle: Run the vacuum with the nozzle removed. If vibration disappears, the issue is in the nozzle. If it remains, the motor/fan is likely at fault.
- Inspect fan (advanced): If accessible, inspect the motor fan for broken blades or debris. Do not bend blades.
- Replace faulty component: Replace the brush roller or nozzle if they are imbalanced. If the motor fan is damaged, the motor assembly should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Brush Roller or Suction Motor Assembly
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