5.2
Brewer calibration
• After entering factory data
• After replacing brewing unit
• After replacing brewing unit motor
• After replacing brewing cylinder
• After each brewer maintenance
The standard value of the brewing unit must be re-checked
so that the “empty” messages are issued correctly.
The calibration must be performed with the brewing unit
completely clean and empty.
5.3
Portioner calibration
The calibration must be done so that the amount of coffee
powder can be correctly set in grams in the settings menu.
The alignment value also affects the software-technical
empty message. After determining the alignment value, the
grinder correction is reset to 100 %.
5.4
Replacing control unit backup battery
after F157
When error message F 157 occurs, the battery must be
replaced.
Follow the instructions on the display:
Save all data in the service memory
Disconnect the machine from the mains
Replace battery
Reconnect the machine to the mains
All data are automatically reloaded into the customer
memory.
5.5
Descaling
Description of descaling follows
ab Software Version 01.02.01
23
Service manual WMF bistro! Edition 08/2011
WMF bistro! Service manual
