Fault
code
on the
display
Const.
weath.-
comp.
System char-
acteristics
Cause
Measures
bC
X
Control mode
without remote
control
Communica-
tion fault
–
Vitotrol re-
mote control,
heating cir-
cuit A1
Check connec-
tions, cable, cod-
ing address "A0"
and remote con-
trol DIP switches
(see page 114).
bd
X
Control mode
without remote
control
Communica-
tion fault,
Vitotrol re-
mote control,
heating cir-
cuit M2
Check connec-
tions, cable, cod-
ing address "A0"
and remote con-
trol DIP switches
(see page 114).
bE
X
Control mode
Vitotrol re-
mote control
incorrectly
programmed
Check remote
control DIP switch
setting (see
page 114)
bF
X
Control mode
Incorrect
LON com-
munication
module
Replace the LON
communication
module
C5
X
X
Control mode,
max. pump
speed
Communica-
tion fault,
variable
speed inter-
nal pump
Check the setting
of coding address
"30"
C6
X
Control mode,
max. pump
speed
Communica-
tion fault
–
external vari-
able speed
heating cir-
cuit pump,
heating
circuit M2
Check setting of
coding address
"E5"
Fault codes
(cont.)
81
Troubleshooting
56
92
682
GB
Содержание Vitodens 333-F
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Страница 119: ...A1 Main PCB A2 Power supply unit Connection and wiring diagram external connections 119 Designs 5692 682 GB ...
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