Miele WWG 660 Operating Instructions Manual page 68

Problem solving guide
General problems with the washing machine
Problem
Large amounts of
detergent residue
remain in the detergent
dispenser drawer.
Fabric conditioner is not
completely dispensed
or too much water
remains in the 
compartment.
At the end of the
programme there is still
liquid in the capsule.
There is water in the
fabric conditioner
compartment next to
the capsule.
68
Cause and remedy
The water pressure is too low.
 Clean the water inlet filter.
 It may be useful to select the Water + extra option.
Powder detergent used in conjunction with water
softeners tends to become sticky.
 In future, add washing powder into the dispenser
drawer first, and then add the water softener.
The siphon tube is not correctly positioned or is
clogged.
 Clean the siphon, see "Cleaning and care -
Cleaning the detergent dispenser drawer".
The small pipe in the detergent dispenser drawer
onto which the capsule is placed is blocked.
 Clean the small pipe.
This is not a fault.
For technical reasons a small amount of water will
remain in the capsule.
The  sensor control was not activated.
 Activate the  sensor control when a capsule is
next used.
An empty capsule was not removed at the end of the
last wash programme.
 Remove and dispose of the empty capsule at the
end of each programme.
There is a blockage in the small pipe in the detergent
drawer onto which the capsule is placed.
 Clean the small pipe.