Miele PWM 912 Operating And Installation Instructions page 42

Cleaning and care
Cleaning the drip
channel and
siphon
42
Open the flap on the detergent drawer to an angle of 45° and lift out

the flap of the detergent drawer on the right side.
If the drip channel and associated drain connection are blocked,
clean them.
Check the vapor extraction grille on the rear of the machine for soil-

ing from time to time and clean when necessary.
The filters in the water intake valves (1) and the inlet hoses (2) must

be checked for soiling from time to time and cleaned as necessary.