Siemens
Building Technologies
6.15 List of displays
6.15.1 Error code
Error
Description of error
code
10
Outside temperature sensor error
20
Boiler temperature 1 sensor error
30
Flow temperature 1 sensor error
32
Flow temperature 2 sensor error
40
Return temperature 1 sensor error
50
DHW temperature 1 sensor error
52
DHW temperature 2 sensor error
57
DHW circulation temperature sensor error
60
Room temperature 1 sensor error
65
Room temperature 2 sensor error
68
Room temperature 3 sensor error
73
Collector temperature 1 sensor error
83
BSB wire short-circuit
85
BSB radio communication fault
98
Extension module 1 fault (common fault status message)
109
Fault boiler temperature supervision
117
Upper pressure limit (crossed)
118
Critical lower pressure limit (crossed)
121
Alarm flow temperature 1 (HC1)
122
Alarm flow temperature 2 (HC2)
127
Legionellentemperatur nicht erreicht
131
Burner fault
146
Configuration error sensor / controlling element
171
Alarm contact input H1 active
172
Alarm contact input H2 active
6.15.2 Maintenance code
Maintenance
Description of maintenance
code
1
Burner hours run exceeded
2
Burner starts exceeded
3
Maintenance interval exceeded
5
Water pressure heating circuit too low
(pressure dropped below lower limit 1)
10
Replace battery of outside sensor
18
Water pressure 2 heating circuit too low
(pressure dropped below lower limit 2)
User Manual
6 The settings in detail
Priority
6
9
6
6
6
9
9
6
6
6
6
6
6
6
6
9
6
6
6
6
6
9
3
6
6
Priority
6
6
6
9
6
9
87/109
CE1U2357en
2014-07-30