Miele G 7591 Operating Instructions Manual page 116

Installation
Venting the water drainage
If the on-site drainage connection is sit-
uated lower than the guide path for the
lower basket rollers in the open door,
the drainage system must be vented.
Otherwise, a siphoning effect during a
program can cause the appliance to
empty itself of water.
 Open the dishwasher door fully.
 Remove the lower basket.
 Insert a screwdriver into the middle
opening of the vent valve in the left
wash cabinet wall .
 Press the screwdriver further into the
opening and push it through the
membrane  behind.
The vent opening for the water drain is
now open.
116