38
Troubleshooting
Faults which are displayed at the programming unit
(cont.)
Fault
code
System
characteristics
Cause
Remedy
50
Cylinder primary
pump ON:
Set cylinder
temperature = set
Short circuit
Cylinder temperature
sensor
Check cylinder
temperature sensor
(see page 59)
58
temperature = set
boiler temperature,
priority control is
cancelled
Lead broken
Cylinder temperature
sensor
92
Control mode
Only solar control
unit fault codes will
be displayed
Short circuit
Collector temperature
sensor, connects to
Vitosolic S1
Check solar control
unit sensor
93
p y
Short circuit
Cylinder temperature
sensor, connects to
Vitosolic S2
94
Short circuit
Temperature sensor,
connects to Vitosolic
S3
9a
Lead broken
Collector temperature
sensor, connects to
Vitosolic S1
9b
Lead broken
Cylinder temperature
sensor, connects to
Vitosolic S2
9c
Lead broken
Temperature sensor,
connects to Vitosolic
S3
5862700GB