Resetting All Passwords To Delivered Condition; Diagnosis; Calling Up Messages (Message History) - Viessmann Vitovalor PT2 Installation And Service Instructions For Contractors

Gas condensing module
02. "Service"
03. Enter password "viservice".
04. Use to confirm.
05. "Change passwords".
06. "Service menu"

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".

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. " "

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.
(cont.)
07. Enter current password.
08. Use
09. Enter new password.
10. Confirm twice with
5. Use
6. "Change passwords"
7. "Reset all passwords"
8. Enter master password.
9. Confirm twice with
2. "Service"
3. Enter password "viservice".
4. Use
5. "Diagnosis"
6. Select required group, e.g. "General".
Diagnosis and service checks
to confirm.
.
to confirm.
.
to confirm.
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