Viessmann Series B2HA 40, Инструкция по установке и обслуживанию

Страница: 119 / 180

119
Dis-
played
fault
code Const. Weath.-
comp. System char-
acteristics Cause Measures
10 X X Regulates as if
the outside
temperature
were 0 °C Short circuit,
outside tem-
perature sen-
sor Check outside tem-
perature sensor
(see page 135).
18 X X Regulates as if
the outside
temperature
were 0 °C Lead break,
outside tem-
perature sen-
sor Check outside tem-
perature sensor
(see page 135).
19 X X Regulates as if
the outside
temperature
were 0 °C Communica-
tion interrup-
tion, outside
temperature
sensor RF
(outside tem-
perature sen-
sor RF, KM
BUS to wire-
less base sta-
tion, wireless
base station
or wireless re-
peater faulty
or defective). Check wireless
connection (place
outside tempera-
ture sensor RF and
wireless repeater
close to the boil-
er).
Check KM BUS to
wireless base sta-
tion.
Log off outside
temperature sen-
sor and wireless
repeater, then log
them on again.
Wireless
base sta-
tion
Replace outside
temperature sen-
sor RF.
Replace wireless
repeater.
Replace wireless
base station.
1 A X X Burner blocked Flow sensor 1
faulty
Replace sensor
(see page 138).
Troubleshooting
Fault codes
5623 520 GB
Service