Service Scans Service Functions; Calling Up The Service Menu; Leaving The Service Menu; Scanning Operating Conditions And Sensors - Viessmann Vitoligno 300-C Installation And Service Instructions For Contractors

Service scans
Service functions
The following service functions can be selected:
■ "Diagnosis", see from page 68
■ "Actuator test", see from page 35
■ "Code 1", see from page 50

Calling up the service menu

The service menu can be activated from any menu.
Press the following keys:
1. + simultaneously for approx. 4 s.
d
å
The "Service" menu appears.

Leaving the service menu

You can leave the service menu as follows:

Scanning operating conditions and sensors

You can verify operating conditions and check sensors
via the Information menu in the "Extended menu" and
in the "Service menu" (Diagnosis and Boiler sub-
menus).
68
"Code 2", see from page 50
■
■ "Boiler"
■ "Fault history" see from page 69
■ "Terminate service"
2. / for the required service function.
| ~
By pressing
■
ä
Automatically after 30 min
■
■ Via menu point "Terminate service"