Fault F51 — Drain pump running with door open, WaterProof System reacted

What does Fault F51 mean?

Fault F51 appears in the display, indicating that the drain pump is still running even when the dishwasher door is open. This means the WaterProof System has been activated, likely due to a leak or overfill.

• The dishwasher's WaterProof System has detected an issue, possibly a leak, and is attempting to pump out water.
• A component failure is causing the drain pump to run continuously.

Click steps to track your progress.

1. 1

   Turn off the water supply to the dishwasher immediately.

2. 2

   Turn off the dishwasher with the On/Off button.

3. 3

   Contact Miele Service for assistance, as this fault relates to the safety system.