11 Troubleshooting
11.1 Fault code table
The following is an extract from the fault code table. If other fault codes
are displayed, please inform the installer.
Fault
code
Error description
Explanations/causes
0
No fault
10
Outside temp sensor fault
Check connection or outside temp sensor, emergency opera
tion
20
Boiler temperature 1 sensor fault
Check connection, inform heating specialist
25
Boiler temperature solid fuel sensor fault
26
Boiler temperature solid fuel sensor fault
28
Boiler temperature solid fuel sensor fault
30
Flow temperature 1 sensor fault
32
Flow temperature 2 sensor fault
Check connection, inform heating specialist
1)
38
Boiler temperature solid fuel sensor fault
40
Return temperature 1 sensor fault
Check connection, inform heating specialist
1)
46
Boiler temperature solid fuel sensor fault
47
Common return temp sensor fault
50
DHW temperature 1 sensor fault
Check connection, inform heating specialist, emergency oper
ation
1)
52
DHW temperature 2 sensor fault
Check connection, inform heating specialist
1)
54
Flow temperature DHW sensor fault
57
Drinking water circulation temperature sensor fault
60
Room temperature 1 sensor fault
65
Room temperature 2 sensor fault
68
Room temperature 3 sensor fault
70
Storage tank temp 1 (top) sensor fault
71
Storage tank temp 2 (bottom) sensor fault
72
Storage tank temp 3 (middle) sensor fault
73
Collector temperature 1 sensor fault
81
LPB short-circuit or no bus power supply
82
LPB address collision
Check addresses of connected control modules
83
BSB wire short-circuit
Check connection of the room units
84
BSB address collision
2 room devices have the same assignment (prog.no. 42)
85
BSB wireless commissioning fault
91
EEPROM fault: information of locking mechanism
Internal fault LMS, process sensor, replace LMS, heating spe
cialist
98
Expansion module 1 fault (collective fault)
99
Expansion module 2 fault (collective fault)
100
Two time masters (LPB)
Check time master
102
Clock time master without backup
105
Maintenance message
See maintenance code (press information button once) for de
tailed information
109
Boiler temperature monitoring
110
Safety temperature limiter lockout
No heat removal, faulty sensor, STB/interruption, possible
short circuit in the gas valve
, internal fuse faulty; allow de
vice to cool down and carry out reset; if the fault occurs sever
al times inform the installer
111
Temperature monitor switching off
No heat supply; pump defect, radiator valves closed
1)
121
Flow temperature 1 (Heating circuit 1) monitoring
122
Flow temperature 2 (Heating circuit 2) monitoring
11 Troubleshooting
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7703301 - 01 - 16072018
