Viessmann VITOTRONIC 300 Operating Instructions Manual page 41

Scanning fault messages
Note
■ If you have connected signalling equipment to indi-
cate fault messages (e.g. a buzzer), this is deactiva-
ted when the fault message is acknowledged.
■ If troubleshooting cannot be carried out until a later
date, the fault message will be displayed again the
following day at 07:00 h. The alarm equipment is
switched on again.
Calling up a fault message
1. Tap in the footer.
The fault message appears in red in a list.
Faults
Time Text
11:30 AM
f0: Combustion controller
24/06/2014
Fig. 40
2. Tapping ? calls up information on the heating sys-
tem characteristics.
Tips on measures you can take yourself before
notifying your heating contractor are displayed.
3. Make a note of the fault code and the cause for the
fault: in this example, f0 "Combustion controller".
This enables the heating contractor to be better
prepared and may save you unnecessary travelling
costs.
4. Notify your heating contractor.
5. Tap "Acknowledge".
Danger
If faults are not rectified, they can have life
threatening consequences.
Do not acknowledge fault messages several
times in quick succession. Notify your heating
contractor if a fault recurs. Your heating contrac-
tor will be able to analyse the cause and rectify
the fault.
(cont.)
Help
Acknowledge
After tapping the following will be displayed if your
heating system has several service messages simulta-
neously:
Message list
Faults
Fig. 41
Tap "Faults"
The fault messages will be listed in red.
Scanning
Service messages
41