Winterhalter
Partial Drain Failure
Machine fills and heats but does not drain at end of cycle; water remains in tank, no error code.
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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
Partially blocked drain hose, Debris in drain pump impeller, Incorrect drain hose height, Weak drain pump motor
How to Fix / Troubleshooting
Safety first: Turn off power and allow water to cool before working near the sump.
- Clean filters and sump: Remove filters and inspect the drain opening for obstructions. Remove any debris.
- Check drain hose routing: Ensure the hose is installed at the correct height and without sags that can trap water.
- Test drain function: Run a drain program and observe the water flow at the outlet. Weak or intermittent flow suggests a failing pump.
- Replace pump if needed: If cleaning does not restore proper drainage, the drain pump should be replaced.
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Repair Difficulty
Medium
3/5
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