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Tab.44
List of error codes
Error code
Message
H00.00
TFlow Open
H00.01
TFlow Closed
H00.06
TReturn Missing
H00.16
DHW sensor Open
H00.17
DHW sensor Closed
H00.32
TOutside Open
H00.33
TOutside Closed
H00.79
TSwimming Pool Open
H00.80
TSwimmingPool Closed
H01.03
Flame Loss Warning
H02.00
Reset In Progress
H02.02
Wait Config Number
H02.03
Conf Error
H02.04
Parameter Error
H02.05
CSU CU mismatch
H02.09
Partial block
H02.10
Full Block
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
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.
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
7740570 - v04 - 03112022
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
Return temperature sensor was expected but not detected
Domestic Hot Water tank temperature sensor is either removed or measures a
temperature below range
Domestic Hot Water tank temperature sensor is either shorted or measures a
temperature above range
Outside temperature sensor is either removed or measures a temperature
below range
Outside temperature sensor is either shorted or measures a temperature
above range
Swimming Pool Flow temperature sensor is either removed or measures a
temperature below range
Swimming Pool Flow temperature sensor is either shorted or measures a
temperature above range
Warning off uninteded flame loss detection
Reset In Progress
Waiting For Configuration Number
Configuration Error
Parameter Error:
CSU does not match CU type
Partial blocking of the device recognized
Full blocking of the device recognized
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
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
8 Troubleshooting
CFU
31
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