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User Manual WMF presto!
Messages and instructions
In many cases, this eliminates the malfunction and you can
continue working.
If this is not successful: find the error message or error
number in the following list and follow the sequence of
actions indicated.
If this does not rectify the error or if the error indicated is
not listed please call WMF Service.
Some messages lead to blocking of individual functions.
You will notice this by the fact that the beverage button
illumination goes out. The beverage buttons that are still
illuminated can continue to be used.
Your WMF presto! is provided with a diagnostics program.
Any errors that occur are shown on the display. The error
messages listed may also be caused by an interruption to
the mains electricity supply.
If there is a current error or a message to the operator, the
pad is displayed.
Touch
Error number is displayed.
Error
number
Error
description
Action instructions
6
Brewing unit lockup
current /
Brewing unit stiff
Switch off the coffee machine
Clean the brewing unit
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Care
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Brewing unit cleaning
26
36
Right grinder
blocked
Left grinder blocked
Switch off the coffee machine
Disconnect mains plug
Remove bean hopper
Turn grinder disk counter-clockwise using only
Multitool (square button) (see illustration)
Replace hopper
Switch on coffee machine
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Care
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Bean hopper cleaning
If this occurs frequently:
Set grinding degree one stage coarser
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Other settings
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Set grinding degree
