107
0
2. "Service"
0
3.
Enter password
"viservice"
.
0
4.
Use
to confirm.
0
5. "Change passwords"
.
0
6. "Service menu"
0
7.
Enter current password.
0
8.
Use
to confirm.
0
9.
Enter new password.
10.
Confirm twice with
.
Resetting all passwords to delivered condition
Tap the following buttons:
1.
Request master password from the Viessmann
Technical Service.
2.
" "
3. "Service"
4.
Enter password
"viservice"
.
5.
Use
to confirm.
6. "Change passwords"
7. "Reset all passwords"
8.
Enter master password.
9.
Confirm twice with
.
Diagnosis
Checking operating data
Operating data can be called up in various areas. See
"Diagnosis"
in the service menu overview.
Operating data on heating circuits with mixer can only
be called up if such components are installed in the
system.
Note
If a called up sensor is faulty,
"- - -"
appears on the
display.
Calling up operating data
Tap the following buttons:
1.
" "
2. "Service"
3.
Enter password
"viservice"
.
4.
Use
to confirm.
5. "Diagnosis"
6.
Select required group, e.g.
"General"
.
Calling up messages (message history)
The messages are sorted by date.
Tap the following buttons:
1.
" "
2. "Service"
3.
Enter password
"viservice"
.
4.
Use
to confirm.
Diagnosis and service checks
Gas condensing module
(cont.)
5853335
Diagnosis