Fault Codes - Viessmann Vitodens 200-W Installation Instructions Manual

Fault codes

Dis- Const.
played
fault
code
10 X
18 X
19 X
Weath.- System char-
comp. acteristics
X Regulates, as if
the outside
temperature
were 0 °C
X Regulates, as if
the outside
temperature
were 0 °C
X Regulates, as if
the outside
temperature
were 0 °C
Troubleshooting
Cause Measures
Short circuit, Check outside tem-
outside tem- perature sensor
perature sen- (see page 135)
sor
Lead break, Check outside tem-
outside tem- perature sensor
perature sen- (see page 135)
sor
Communica- Check wireless
tion interrup- connection:
tion, outside place outside tem-
temperature perature sensor RF
sensor RF: and wireless re-
outside tem- peater close to the
perature sen- boiler.
sor RF, KM Check KM BUS to
BUS to wire- wireless base sta-
less base sta- tion.
tion, wireless Log off outside
base station temperature sen-
or wireless re- sor and wireless
peater faulty repeater, then log
or defective them on again.
Replace outside
temperature sen-
sor RF.
Replace wireless
repeater.
Replace wireless
base station.
Wireless
base sta-
tion
117