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Error code
Message
H02.16
Int CSU Timeout
H02.25
ACI error
H02.36
Funct device lost
H02.37
Uncritic device lost
H02.40
Function unavailable
H02.48
Funct Gr Conf Fault
H02.60
Unsupported function
H07.01
Burner fault
8.3
Error codes
Tab.45
List of fault codes
Error code
Message
E00.00
TFlow Open
E00.01
TFlow Closed
E01.04
5x Flame Loss Error
E01.12
Return Higher Flow
E02.13
Blocking Input
E02.15
Ext CSU Timeout
E02.41
FG press sw present
E02.42
Flue T press sw pres
E02.44
FG press
8.4
Alarm codes
Tab.46
List of alarm codes
Alarm code
Message
A00.32
TOutside Open
A00.33
TOutside Closed
A00.34
TOutside Missing
A00.81
RoomTempMissing
A02.18
OBD Error
7740500 - v02 - 12022021
Description
Internal CSU Timeout
ACI error
Functional device has been disconnected
Uncritical device has been disconnected
Function unavailable
Function Group Configuration Fault
The zone doesn't support the selected function
Burner fault has occured
If an error code is still present after several automatic start-up attempts,
the boiler switches to fault mode.
The boiler will only resume normal operation once the causes of the lock-
out have been eliminated by the installer.
As a result of:
a manual reset,
a reset by a maintenance message.
When one of the codes below is displayed, contact the professional
responsible for maintenance of the boiler.
Description
Flow temperature sensor is either removed or measures a temperature below
range
Flow temperature sensor is either shorted or measures a temperature above
range
5x Error of unintended Flame Loss occurance: occurs after 3 H01.03 faults in
the same heating request
Return tempearture has a higher temperature value than the flow temperature
Blocking Input of the Control Unit from device external environment
External CSU Timeout
The Fluegas pressure switch is present
Flue temperature pressure switch is present
Fluegas pressure switch not switched error
An alarm code is a temporary boiler status resulting from the detection of
an anomaly. If an alarm code still remains after several automatic start-up
attempts, the boiler goes into fault mode.
When one of the codes below is displayed, contact the professional
responsible for maintenance of the boiler.
Description
Outside temperature sensor is either removed or measures a temperature
below range
Outside temperature sensor is either shorted or measures a temperature
above range
Outside temperature sensor was expected but not detected
Room Temperature sensor was expected but not detected
Object Dictionary Error
8 Troubleshooting
CFU
35
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