Frequently Asked Questions
79
Noises
Problem
Possible cause and solution
There is a knocking
noise in the wash cabi‐
net.
A spray arm is hitting the dishware.
Interrupt the program, and rearrange the items
which are obstructing the spray arm.
There is a rattling noise
in the wash cabinet.
Dishware is moving around in the wash cabinet.
Interrupt the program and rearrange loose pieces.
A foreign object (e.g., a cherry pit) has become
lodged in the drain pump.
Remove the foreign object from the drain pump
(see "Maintenance - Cleaning the drain pump and
non-return valve").
There is a knocking
noise from the water
pipe
This may be caused by the installation or the diame‐
ter of the water pipe.
This has no influence on dishwasher function. If in
doubt, contact a suitably qualified plumber.