Viessmann Vitotronic 200 Installation And Service Instructions Manual page 65

Faults that are displayed at the programming unit
Fault code System character-
on the dis- istics
play
01 to 98 Control mode
99 Control mode
Cause Measures
A fault has oc- Download fault code to
curred at a sub- subscriber
scriber, e.g. 12
(Vitotronic 200-H)
or
no connection to
the subscriber
Check coding
Check connecting LON
cable
Updating the LON sub-
scriber list
Carrying out a subscri-
ber check
Fault message Check the external con-
active at Vitocom nections at Vitocom 300
300
or
Fault at
Vitocom 300
or
no connection to
the Vitocom 300 Check coding
Check connecting LON
cable
Updating the LON sub-
scriber list
Carrying out a subscri-
ber check
Troubleshooting
(cont.)
Installation and
service instruc-
tions of the rele-
vant control unit
Installation and
service instruc-
tions Vitocom 300
65