Brandt Internal Hose / Sump / Pump Leak

Dishwasher leaks water from underneath the machine.

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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

Loose or cracked internal hose, Damaged sump gasket, Leaking circulation or drain pump seal, Cracked water matrix

How to Fix / Troubleshooting

Safety first: Unplug the dishwasher and close the water tap immediately. Be prepared for water when tilting the appliance.

  • 1. Access base: Remove the toe-kick and bottom panel to inspect the base for water and leak traces.
  • 2. Identify leak source: Run a short cycle while observing the base. Look for drips from hoses, pumps, sump, or side matrix.
  • 3. Tighten or replace hoses: Tighten hose clamps and replace any hoses that are cracked or swollen.
  • 4. Check sump and pumps: Inspect the sump gasket and pump seals. Replace the sump assembly or pump if leaking.
  • 5. Replace cracked matrix: If the side water matrix is cracked, replace it to prevent recurring leaks.
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Repair Difficulty

Hard 4/5

Required Part

Hoses / Sump Assembly / Pumps
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