Scanning Information - Viessmann VITOLIGNO 300-H Operating Instructions For The System User

Scanning fault messages
3. Make a note of the cause of the fault
and the fault code next to it on the
right. In this example: "Outside sen-
sor 34" and "Fault O2 probe 91".
This enables the heating contractor to
be better prepared for the service call
and may save additional travelling
costs.
4. If you want to acknowledge the fault
message, follow the instructions in the
menu.
The fault message is adopted into the
menu.
Boiler water temp
Fault
Boiler
Buffer
Heating
Continue with
Note
■ If you have connected signalling
equipment to indicate fault mes-
sages (e.g. a buzzer), this signalling
equipment is deactivated when the
fault message is acknowledged.
■ If the fault can only be rectified at a
later date, the fault message is dis-
played again the next day and the
signalling equipment is switched on
again.

Scanning information

You can scan information in the standard
menu and in the extended menu. They
differ in the extent of the information dis-
played.
(cont.)
Calling up an acknowledged fault
message
Press the following keys:
1. ä
2. |/~ for "Fault".
3. d
48°C
OK
If you select the "Heating" sub-menu,
you can request information on the
required heating circuit via "Ù/Ú".
Scanning
repeatedly until the standard
menu is displayed.
to confirm.
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