Blomberg Incomplete Drainage

Dishwasher leaves standing water in the bottom at the end of the cycle; no error code shown.

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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 pump, Clogged drain hose, Obstructed sink trap spigot, Incorrect drain hose installation (siphoning)

How to Fix / Troubleshooting

Safety first: Disconnect power before accessing the pump or hoses.

Steps:

  • Clean filters and sump: Remove filters and check the sump for debris. Remove any foreign objects.
  • Check drain hose routing: Ensure the hose has a high loop under the counter to prevent backflow and is not kinked.
  • Clean sink connection: Detach the hose from the sink trap or disposer and clear any blockage. Remove the disposer knockout plug if newly installed.
  • Inspect pump: Access the drain pump from the base, check the impeller for obstructions, and ensure it spins freely.

When to call a technician: If the pump motor is faulty or the control board is not energizing it, professional repair is needed.

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Repair Difficulty

Medium 3/5

Required Part

Drain Pump
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