Miele · Professional Troubleshooting Guide
The pressure switch is stuck in the 'full' position, or there's a blockage preventing the pump from draining water effectively from the appliance.
Click steps to track your progress.
Turn off the washer dryer's power supply.
Check the drain filter for any debris and clean it thoroughly.
Inspect the drain hose for kinks or blockages.
Check that the earth connection to the appliance is good and secure.
Reset the appliance by turning off power for 30 seconds and then restoring it.