Resetting All Passwords To The Factory Setting; Diagnosis; Checking Outputs (Actuator And Sensor Test) - Viessmann Vitovalor PT2 E11T Installation And Service Instructions Manual

Diagnosis and service checks
Gas condensing module
Tap the following buttons:
1. " "
2. "Service menu"
3. Enter password "viservice".
4. "Change passwords".

Resetting all passwords to the factory setting

Tap the following buttons:
1. Request the master password from the Technical
Service at the Viessmann Group.
2. " "
3. "Service menu"
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. " "
2. "Service menu"
3. Enter password "viservice".
4. "Diagnosis"

Checking outputs (actuator and sensor test)

Note
When the actuator and sensor test is started, all actua-
tors are initially disabled or valves moved to their cen-
tral position.
98
(cont.)
5. "Service menu "
6. Enter current password.
7. Use
8. Enter new password.
9. Confirm twice with
5. "Change passwords"
6. "Reset all passwords"
7. Enter master password.
8. Confirm twice with
5. Select required group, e.g. "General".
Resetting operating data
Saved operating data (for example, hours run) can be
reset to 0.
The value "Adjusted outside temperature" is reset to
the actual value.
Tap the following buttons:
1. "
2. "Service menu"
3. Enter password "viservice".
4. "Diagnosis"
5. "Reset data"
6. Select the required value.
Tap the following buttons:
1. "
2. "Service"
3. Enter password "viservice".
to confirm.
.
.
"
"