125
Displayed
fault code
System characteris-
tics
Cause
Measures
0F
Control mode
Service
"0F" is only dis-
played in the fault
history
Service required
Note
After servicing, select
code "24:0".
10
Controls as if the out-
side temperature
were 0 °C
Short circuit, out-
side temperature
sensor
Check outside tempera-
ture sensor (see
page 139)
18
Controls as if the out-
side temperature
were 0 °C
Lead break, out-
side temperature
sensor
Check outside tempera-
ture sensor (see
page 139)
19
Controls as if the out-
side temperature
were 0 °C
Communication er-
ror, wireless out-
side temperature
sensor
Check wireless connec-
tion (place wireless out-
side temperature sensor
close to the wireless base
station). Log off outside
temperature sensor then
log on again. Replace if
required (see "Wireless
base station" installation
and service instructions).
20
Regulates without
flow temperature
sensor (low loss
header)
Short circuit, sys-
tem flow tempera-
ture sensor
Check low loss header
sensor (see page 140)
28
Regulates without
flow temperature
sensor (low loss
header)
Lead break, sys-
tem flow tempera-
ture sensor
Check low loss header
sensor (see page 140)
If no low loss header sen-
sor is connected, set code
52:0
30
Burner blocked
Short circuit, boiler
water temperature
sensor
Check boiler water tem-
perature sensor (see
page 140)
38
Burner blocked
Lead break, boiler
water temperature
sensor
Check boiler water tem-
perature sensor (see
page 140)
Troubleshooting
Fault codes
5773 238 GB
Service
Содержание B2UA
Страница 10: ...10 13 14 15 Preparing for installation Preparing the installation cont 5773 238 GB ...
Страница 11: ...11 16 Preparing for installation Preparing the installation cont 5773 238 GB Installation ...
Страница 12: ...12 sF 17 19 21 20 18 Preparing for installation Preparing the installation cont 5773 238 GB ...
Страница 13: ...13 24 22 23 Preparing for installation Preparing the installation cont 5773 238 GB Installation ...
Страница 14: ...14 27 26 25 Preparing for installation Preparing the installation cont 5773 238 GB ...
Страница 15: ...15 28 2x 2x 29 30 Preparing for installation Preparing the installation cont 5773 238 GB Installation ...
Страница 21: ...21 Removing the front panels 2 4 2x 1 3 5 Installation sequence Installing the boiler 5773 238 GB Installation ...
Страница 22: ...22 Siting and levelling the boiler 1 2 SW17 Installation sequence Installing the boiler cont 5773 238 GB ...
Страница 29: ...29 2x 4x 4 3 5 2 1 Installation sequence Opening the control unit casing 5773 238 GB Installation ...
Страница 39: ...39 5 4 2 6 2x 3 1 Installation sequence Closing the control unit casing 5773 238 GB Installation ...
Страница 41: ...41 2x 1 4 2 3 5 Installation sequence Fitting the front panels 5773 238 GB Installation ...
Страница 185: ...185 0010 0004 0001 0003 0004 0005 0009 0006 0007 0008 0007 0002 Parts lists Cylinder module cont 5773 238 GB Service ...
Страница 199: ...199 5773 238 GB ...