Gaggenau Drain System Leak

Washer-dryer leaks water from the rear or underneath during drain or spin.

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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

Cracked or loose drain hose, Loose tub-to-pump hose clamp, Split sump hose, Leaking drain pump housing

How to Fix / Troubleshooting

Safety first: Unplug the appliance and close water taps. Expect water spillage when disconnecting hoses.

  • 1. Inspect external drain hose: Check the rear hose for cracks, splits, or loose connections at both the machine and standpipe/sink.
  • 2. Access internal hoses: Remove the rear or bottom panel to view the tub-to-pump and pump-to-drain hoses. Look for water trails and damp areas.
  • 3. Tighten or replace clamps: If a hose connection is damp, tighten the clamp or replace with a new worm-drive clamp.
  • 4. Replace damaged hoses or pump: Any hose with visible damage or a pump with a cracked housing should be replaced.
  • 5. Test under operation: Run a rinse/spin cycle while observing for leaks.
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Repair Difficulty

Medium 3/5

Required Part

Tub-to-Pump Hose
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