WMF Presto Service Manual page 27

96 Auto detect malfunction:
Mixer not detected but
choc/topping portioner
detected
963 Auto detect malfunction:
choc/topping portioner
not detected but mixer
detected
964 Auto detect malfunction:
Mixer valve detected
but no powder portioner
detected or; Hot
water-Choc/topping
valve not detected but
choc/topping portioner
detected
965 Auto detect malfunction:
Milk pump detected
but no cappuccino
valve detected or milk
pump not detected
but cappuccino valve
detected
Power supply reports
voltage too low
Pump switches to
pressure -lowering mode
(Info = button number)
975 Reset triggered by
customer
988 MDB communication
error coin checker
989 MDB communication
error card reader
990 MDB communication
error banknote reader
991 4 V are switched off and
then on again (reset for
MDB equipment on 4 V)
WMF presto Service manual edition 08/2007
WMF presto Service Manual
√ √
√ √
√ √
√ √
√ √ External mains voltage!
√ √ Pump pressure lowered.
The beverage number is
entered into the laptop
Info column
√ √
√ √
√ √
√ √
√ √
96
963
964
965
968
971 Pump pressure
lowered, 971
75 975
88 988
89 989
90 990
91 991
7