Viessmann VITODENS 200-W Service Instructions Manual page 68

Troubleshooting
Fault codes
(cont.)
Fault Const. Weath.-
code on comp.
the dis-
play
92 X X
93 X X
94 X X
9A X X
9b X X
68
System char- Cause
acteristics
Control mode Short circuit,
collector tem-
perature sen-
sor; connects
to the
Vitosolic at
S1
Control mode Short circuit,
cylinder tem-
perature sen-
sor; connects
to the
Vitosolic at
S3
Control mode Short circuit,
temperature
sensor; con-
nects to the
Vitosolic at
S2
Control mode Lead break,
collector tem-
perature sen-
sor; connects
to the
Vitosolic at
S1
Control mode Lead break,
cylinder tem-
perature sen-
sor; connects
to the
Vitosolic at
S3
Measures
Check the sensor
at the Vitosolic.
Check the sensor
at the Vitosolic.
Check the sensor
at the Vitosolic.
Check the sensor
at the Vitosolic.
Check the sensor
at the Vitosolic.