107
Weather-compensated control unit
Press
OK
and
å
simultaneously for
approx. 4 s.
Service menu overview
Service
Diagnosis
Actuator test
Coding level 1
Brief scan
General
Heating circuit 1 HC1
Heating circuit 2 HC2
DHW
Solar
Enter Vitocom PIN code
Subscriber check
Service PIN
Heating circuit 3 HC3
Coding level 2
Fault history
Service functions
Terminate service?
Reset data
Filling
Venting
Max. output
Service reset
Multi-boiler system
Note
Do not adjust menu item "Multi-boiler
system".
The menu item turns a weather-compen-
sated control unit into a constant tem-
perature control unit.
Exiting the service level
1.
Select
"Terminate service?"
.
2.
Select
"Yes"
.
3.
Confirm with
OK
.
Note
The service level is automatically exi-
ted after 30 min.
Constant temperature control unit
1.
Press
OK
and
å
simultaneously
for approx. 4 s.
"
Ü
" flashes on the display.
2.
Select required function. See the fol-
lowing pages.
Diagnosis and service scans
Calling up the service level
5623 520 GB
Service
