Diagnosis And Service Service Menu; Checks ■ Calling Up The Service Menu; Exiting The Service Menu; Diagnosis - Viessmann Vitodens 050-W Installation And Service Instructions Manual

Diagnosis and service checks
Service menu
Calling up the service menu
Tap the following buttons:
1. and OK simultaneously for approx. 4 s, then
release.
2. Select the required menu section (e.g. "b.1" Con-
nect with software tool).
Note
Not all menu sections will be available, depending
on the system equipment level.
Service menu overview
Service
Er Active messages
b.1 Connect with software tool.
b.2 System configuration
b.3 Diagnostics
d.1 Outside temperature
d.2 Heat generator flow temperature
d.3 Primary pump speed %
d.4 Flue gas temperature
d.5 Burner hours run
d.6 Burner output
d.7 3-way valve position
0 = Heating
1 = Middle position (if installed)
2 = DHW
d.8 Serial number of heat generator
d.9 Heating circuit 1 flow temperature
b.4 Message history
b.5 Commissioning assistant
b.6 Start upper/lower heating output for test mode.

Exiting the service menu

Tap the following buttons:
" " several times.

Diagnosis

Checking operating data

Operating data can be checked in various areas. See
"Diagnosis" in the service menu overview.
54
Note
Tap " " to return to the service menu
Note
The system exits the service menu automatically after
30 min.