72
Fault code dis-
played
System characteristics
Cause
Measures
92
No solar DHW heating
Short circuit, collector
temperature sensor
Check temperature sensor
&
on
solar control module or sensor on
the Vitosolic.
93
Control mode
Short circuit, cylinder tem-
perature sensor
Check temperature sensor at ter-
minal S3 on the Vitosolic 100.
94
No solar DHW heating
Short circuit, cylinder tem-
perature sensor
Check temperature sensor
%
on
solar control module or sensor on
the Vitosolic.
98
Control mode
Lead break, temperature
sensor
/
Check sensor
/
on solar control
module.
99
Control mode
Lead break, temperature
sensor
aÖ
Check sensor
aÖ
on solar control
module.
9A
No solar DHW heating
Lead break, collector tem-
perature sensor
Check temperature sensor
&
on
solar control module or sensor on
the Vitosolic.
9B
Control mode
Lead break, cylinder tem-
perature sensor
Check temperature sensor at ter-
minal S3 on the Vitosolic 100.
9C
No solar DHW heating
Lead break, cylinder tem-
perature sensor
Check temperature sensor
%
on
solar control module or sensor on
the Vitosolic.
9E
Control mode
No or inadequate flow rate
in collector circuit, or tem-
perature limiter has re-
sponded.
Check solar circuit pump and solar
circuit. Acknowledge fault mes-
sage.
9F
Control mode
Solar control module or
Vitosolic fault
Replace solar control module or
Vitosolic.
A3
Burner blocked.
Flue gas temperature sen-
sor incorrectly positioned.
Fit flue gas temperature sensor
correctly. See page 79
A4
Control mode
Max. system pressure ex-
ceeded
Check system pressure: Max.
3 bar (0.3 MPa)
Check the function and sizing of
the diaphragm expansion vessel.
Vent the heating system.
A7
Control mode as per deliv-
ered condition
Programming unit faulty
Replace the programming unit.
B0
Burner blocked
Short circuit, flue gas tem-
perature sensor
Check flue gas temperature sen-
sor.
B1
Control mode as per deliv-
ered condition
Communication error, pro-
gramming unit
Check connections; replace pro-
gramming unit if necessary.
B5
Control mode as per deliv-
ered condition
Internal fault
Replace control unit.
B7
Burner blocked
Fault, coding card
Plug in coding card or replace if
faulty.
B8
Burner blocked
Lead break, flue gas tem-
perature sensor
Check flue gas temperature sen-
sor.
BA
Mixer regulates to 20 °C flow
temperature.
Communication error, ex-
tension kit for heating cir-
cuit 2 (with mixer)
Check extension kit connections
and code.
BB
Mixer regulates to 20 °C flow
temperature.
Communication error, ex-
tension kit for heating cir-
cuit 3 (with mixer)
Check extension kit connections
and code.
Troubleshooting
Fault codes
(cont.)
5792 925 GB
Diagnosis
Содержание Vitocrossal 100 CI1
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