Kärcher
No Power / Dead Unit
Cordless vacuum will not turn on at all, no lights or sounds
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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
Completely discharged or defective battery, Faulty power button or trigger switch, Open circuit on main control PCB, Internal fuse or protection component failure
How to Fix / Troubleshooting
Safety first: Do not attempt to bypass fuses or safety components.
- Verify battery charge: Place the battery on the charger and confirm that the charger LEDs indicate charging. If the charger shows an error or no response, test with another battery if possible.
- Try another battery: If a second battery works, replace the original battery.
- Check trigger/power button: Ensure the trigger is not physically broken or jammed. Press firmly several times.
- Inspect for damage: Look for signs of impact, cracks, or liquid ingress. If present, internal components may be damaged.
- Service if still dead: If a known-good battery does not power the unit and there are no lights, the main PCB or internal wiring is likely faulty and requires professional repair.
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Repair Difficulty
Medium
3/5
Required Part
Main Control PCB or Power Button Assembly
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