Operating instructions

Fault
code
on the
display
Const. weath.-
comp.
System char-
acteristics
Cause Measures
58 X X No DHW heat-
ing
Cylinder
temperature
sensor or
comfort sen-
sor lead bro-
ken
Check the cylin-
der temperature
sensor (see
page 80).
Check the comfort
sensor (see
page 82).
59 X X No DHW heat-
ing
Outlet tem-
perature
sensor lead
broken
Check the sensor
(see page 82).
92 X X Control mode Collector
temperature
sensor
shorted out;
connects to
the Vitosolic
at S1
Check the sensor
at the Vitosolic.
93 X X Control mode Cylinder
temperature
sensor
shorted out;
connects to
the Vitosolic
at S3
Check the sensor
at the Vitosolic.
94 X X Control mode Temperature
sensor
shorted out;
connects to
the Vitosolic
at S2
Check the sensor
at the Vitosolic.
9A X X Control mode Collector
temperature
sensor lead
broken; con-
nects to the
Vitosolic at
S1
Check the sensor
at the Vitosolic.
Fault codes (cont.)
71
Troubleshooting
5692 672 GB