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Frequently Asked Questions
74
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:
T
urn the dishwasher off with the button.
There is a problem with the water intake.
Ther
e 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 ki
nk or loop in the drain hose.