25
In case of a lockout, a warning symbol ( ) and a flashing error code appears on the display. The cause of a fault should first
be determined and eliminated before the boiler is being reset. The table below shows all possible lockouts with indication of
possible cause.
Lockouts
Error
code
Description of error
0 No
error
10
Outside temperature sensor error
20
Boiler temperature 1 sensor error
26
Common flow temperature sensor error
28
Flue gas temperature sensor error
30
Flow temperature 1 sensor error
32
Flow temperature 2 sensor error
38
Flow temperature primary controller sensor error
40
Return temperature 1 sensor error
46
Return temperature cascade sensor error
47
Common return temperature sensor error
50
DHW temperature 1 sensor error
52
DHW temperature 2 sensor error
54
DHW primary controller sensor error
57
DHW circulation temperature sensor error
60
Room temperature 1 sensor error
65
Room temperature 2 sensor error
70
Buffer storage tank temperature 1 sensor error
71
Buffer storage tank temperature 2 sensor error
72
Buffer storage tank temperature 3 sensor error
73
Collector temperature 1 sensor error
74
Collector temperature 2 sensor error
82
LPB address collision
83
BSB wire short-circuit
84
BSB address collision
85
BSB RF communication error
91
EEPROM error lockout information
98
Extension module 1 error (collective error)
99
Extension module 2 error (collective error)
100
2 clocktime masters (LPB)
102
Clocktime master without reserve (LPB)
103 Communication
error
105 Maintenance
message
109
Boiler temperature supervision
110 STB
lockout
111 TW
cutout
121
Flow temperature 1 (HC1) supervision
122
Flow temperature 2 (HC2) supervision
125
Pump supervision error
126
DHW charging supervision
127
Legionella temperature not reached
128
Loss of flame during operation
129
Fan error or LP error
130
Flue gas temperature limit exceeded
131
Burner fault
132
GP or LP error
133
No flame during safety time
146
Configuration error collective message
