127
Dis-
played
fault
code
Const.
Weath.-
comp.
System char-
acteristics
Cause
Measures
bE
X
Control mode
without remote
control
Communica-
tion error, re-
mote control
Vitotrol heat-
ing circuit 3
(with mixer)
Check connec-
tions, cable, coding
address "A0" in
group
"Heating
circuit..."
/
5
and re-
mote control con-
figuration (see
page 166).
For wireless re-
mote controls:
Check connec-
tions, place remote
control unit close to
the boiler
bF
X
Control mode
Incorrect
LON commu-
nication mod-
ule
Replace LON com-
munication module
C1
X
X
Control mode
Communica-
tion error, ex-
tension EA1
Check connec-
tions
Without exten-
sion EA1:
Set code "5b:0" in
group
"General"
/
1
C3
X
X
Control mode
Communica-
tion error, ex-
tension AM1
Check connec-
tions
Without extension
AM1:
Set code "32:0" in
group
"General"
/
1
C4
X
X
Control mode
Communica-
tion error,
OpenTherm
extension
Check OpenTherm
extension
C5
X
X
Control mode,
max. pump
speed
Communica-
tion error, var-
iable speed
internal pump
Check coding ad-
dress setting "30"
in group
"Boiler"
/
2
Troubleshooting
Fault codes
(cont.)
5773 216 GB
Service
Summary of Contents for Vitodens 222-F B2TA series
Page 12: ...12 2 5 1 4 2x 3 Installing the boiler Removing the front panels 5773 216 GB...
Page 13: ...13 1 2 SW17 Installing the boiler Siting and levelling the boiler 5773 216 GB Installation...
Page 31: ...31 4 1 5 2 2x 3 Installing the boiler Fitting the front panels 5773 216 GB Installation...
Page 194: ...194 5773 216 GB...
Page 195: ...195 5773 216 GB...