Resetting All Passwords To Delivered Condition; Diagnosis; Checking Operating Data; Calling Up Messages (Message History) - Viessmann B2TF Installation And Service Instructions Manual

Changing the service password
09. Enter new password.

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. Confirm with .
(cont.)
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.
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