
75
Fault
code on
the dis-
play
Const.
weath.-
comp.
System char-
acteristics
Cause
Measures
9A
X
X
Control mode
Collector
temperature
sensor lead
broken; con-
nects to the
Vitosolic at
S1
Check the sensor
at the Vitosolic
9b
X
X
Control mode
Cylinder tem-
perature sen-
sor lead bro-
ken; connects
to the
Vitosolic at
S3
Check the sensor
at the Vitosolic
9C
X
X
Control mode
Temperature
sensor lead
broken; con-
nects to the
Vitosolic at
S2
Check the sensor
at the Vitosolic
9F
X
X
Control mode
Solar control
unit fault; dis-
played if a
fault without
fault code
occurs at the
solar control
unit
Check the solar
control unit (see
solar control unit
service instruc-
tions)
A2
X
Emergency
mode with
insufficient sys-
tem pressure,
triggered by
code "0d" (see
page 44)
System pres-
sure too low
Top up with water
Troubleshooting
Fault codes
(cont.)
5692 760 GB
Summary of Contents for VITOCONTROL-S, WB2B
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