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Frequently Asked Questions
86
Water drainage fault
Problem
Possible cause and solution
The Optical Interface is
flashing quickly.
The buzzer is sounding.
The following fault ap-
pears in the display:
Drain
Before fixing the fault:
Turn the dishwasher off with the
button.
There is a problem with the water intake.
There might be water in the wash cabinet.
Clean the filter system (see "Cleaning and care -
Filter system").
Clean the drain pump (see "Frequently asked
questions").
Clean the non-return valve (see "Frequently asked
questions").
Remove any kink or loop in the drain hose.