E10
Klarstein
Descaling Program / Flow Timeout Error
Display shows E10 and the Klarstein coffee maker cannot complete a descaling cycle.
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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
Severe limescale blocking heater or tubing, Flow meter not registering pulses, User interrupted descaling cycle, Low water level during descaling
How to Fix / Troubleshooting
Safety first: Unplug the machine and let it cool before opening any covers.
Repeat descaling correctly:
- Fill the water tank with the recommended amount of descaling solution.
- Start the descaling program and allow it to run without interruption until the machine indicates completion.
- Refill and run at least two full tanks of clean water to rinse.
If E10 persists:
- Inspect the flow meter and tubing for blockages (advanced).
- Remove and clean or replace the flow meter if it is clogged with scale.
In severe cases, the heater block may be fully scaled and require replacement.
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Repair Difficulty
Hard
4/5
Required Part
Flow Meter / Heating Block
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