23
WMF presto Service manual edition 08/2007
WMF presto Service Manual
7 Error messages and events
7.1 Display messages
Operation messages
Water tank is empty or not
inserted
Beans right idling current
detected
Shut-off valve is closed or
flowmeter malfunction
Grounds container at full limit
(Default 200 seconds grinding-
time of grinders).
If temperature in boiler or
steam boiler too low.
Micro switch grounds
container or micro switch
adjustable screen without
contact.
During automatic (following
first heating) or manual (via
warm rinse button) warm
rinse.
If grounds container was drawn
out for more than 5 seconds.
Beans left idling current
detected.
With Aquaflex only:
Water in tank but set to
permanent water supply
Cleaning messages
Brewing unit not detected
following closing of door
or inserting of grounds
container.
With machines without drain
connection and after cleaning
with switching off at next
switching on of the machine.
A flow error has occurred
during the cleaning program.
Maintenance and care messages
After 10,000 / 15,000
brewings or one year
With machines with constant
water connection
After 30,000 brewings or
2 years
With water tank machines
After 90,000 brewings or
6 years
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