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Fault display
(cont.)
Fault code dis-
System characteristics
played
34
Control unit set to 0 °C out-
side temperature
35
No DHW heating
36
37
41
42
43
44
45
46
51
52
53
54
55
56
No solar yield
57
No solar yield
61
62
63
64
65
66
No solar yield
67
No solar yield
Cause
Lead break, outside tem-
perature sensor
Lead break, top buffer
temperature sensor
Lead break, centre buffer
temperature sensor
Lead break, bottom buffer
temperature sensor
Lead break, mixer exten-
sion kit 1
Lead break, mixer exten-
sion kit 2
Lead break, mixer exten-
sion kit 3
Lead break, remote con-
trol 1
Lead break, remote con-
trol 2
Lead break, remote con-
trol 3
Short circuit, flow temper-
ature sensor, group 1
Short circuit, flow temper-
ature sensor, group 2
Short circuit, flow temper-
ature sensor, group 3
Short circuit, cylinder tem-
perature sensor
Short circuit, DHW return
temperature sensor
Short circuit, collector
temperature sensor
Short circuit, solar refer-
ence sensor
Lead break, flow tempera-
ture sensor, group 1
Lead break, flow tempera-
ture sensor, group 2
Lead break, flow tempera-
ture sensor, group 3
Lead break, cylinder tem-
perature sensor
Lead break, DHW return
temperature sensor
Lead break, collector tem-
perature sensor
Lead break, solar refer-
ence sensor
Troubleshooting
Measures
Check outside temperature sensor
Check top buffer temperature sen-
sor
Check centre buffer temperature
sensor
Check buffer temperature sensor
Check connection to mixer exten-
sion kit 1
Check connection to mixer exten-
sion kit 2
Check connection to mixer exten-
sion kit 3
Check connection to remote con-
trol 1
Check connection to remote con-
trol 2
Check connection to remote con-
trol 3
Check flow temperature sensor,
group 1
Check flow temperature sensor,
group 2
Check flow temperature sensor,
group 3
Check cylinder temperature sensor
Check DHW return temperature
sensor
Check collector temperature sen-
sor.
Check solar reference sensor.
Check flow temperature sensor,
group 1
Check flow temperature sensor,
group 2
Check flow temperature sensor,
group 3
Check cylinder temperature sensor
Check DHW return temperature
sensor
Check collector temperature sen-
sor.
Check solar reference sensor.
63
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