Miele G 640 Operating Instructions Manual page 46

Problem solving guide
Problem
Knocking noise
in the wash cabinet
Rattling noise
A whistling noise is
heard during the
programme
Knocking noise in the
water pipes
Dishes and glasses are
not dry or are flecked
46
Possible cause
The spray arm is
knocking against an item
in the basket.
Items of crockery are
insecure in the wash
cabinet.
The axial face seal of the
circulation pump
sometimes makes a
whistling noise. This may
be caused by detergent.
This may be caused by
the on-site installation or
the cross-section of the
piping.
The rinse-aid amount set
may be insufficient, or the
rinse-aid reservoir empty.
The water hardness level
selector in the wash
cabinet is set too high.
Crockery was taken out
of the cabinet too soon.
Drying heat is switched
off.
Remedy
Interrupt the programme,
rearrange items which
are obstructing the spray
arms.
Interrupt the programme,
rearrange the items of
crockery.
This is not a problem. Try
out other detergents.
Consult the Miele Service
Department if the noise is
permanent.
This has no influence on
dishwasher function. If in
doubt contact a suitably
qualified plumber.
Increase the dosage or
replenish the reservoir,
see "Before using for the
first time".
Set the selector to a
lower setting, See
"Programming and
setting the water
hardness level".
Leave it in for longer, see
"Operating the
dishwasher"
Switch the "Drying heat"
option back on, see
"Operating the
dishwasher"