Error
code
Message
Description
H02.23
System flow error
System water flow error active
Flow problem
Insufficient flow: open a radiator valve.
The circuit is clogged:
Check that the filters are not obstructed and clean them if necessary.
Clean and flush the installation,
No circulation:
Check that the valves and thermostatic valves are open,
Check that the circulating pump is working,
Check the wiring,
Check the pump supply: if the pump does not work, replace it.
Too much air: completely vent the indoor unit and the installation for optimum running.
Incorrect wiring: check the electrical connections.
Flow meter:
Check the electrical connections and the direction of the flow meter (arrow to the
right).
Replace the flow meter if necessary
H02.25
ACI error
Titan Active System short circuited or on an open circuit
Check the connection cable.
Check that the anode has not short-circuited and is not broken.
H02.36
Funct device lost
Functional device has been disconnected
No communication between the central unit PCB and the additional circuit PCB
Check the connection of the supply cable between the PCBs.
Check the connection of the BUS cable between the PCBs.
Run automatic detection.
H02.37
Uncritic device lost
Uncritical device has been disconnected
No communication between the central unit PCB and the additional circuit PCB
Check the connection of the supply cable between the PCBs.
Check the connection of the BUS cable and the PCBs.
Run automatic detection.
H02.60
Unsupported function
The zone doesn't support the selected function
H06.01
HP Unit Failure
Heat Pump Unit Failure occured
Heat pump outdoor unit fault
Check the wiring between the central unit PCB and the communication bus on the
outdoor unit.
Check the connection of the communication cable between the central unit PCB and
the interface PCB.
Check the connection of the supply cable between the central unit PCB and the in
terface PCB.
Check the connection of the outdoor unit supply cable.
11.2.3 SCB-10 error codes
An error code is a temporary status, resulting from the detection of a heat
pump anomaly. The control panel attempts automatic restart of the heat
pump until it switches on.
Tab.97
Code
Display text
Description
H00.69
TbufferTankOpen
Buffer Tank temperature sensor is either removed or
measures a temperature below range
H00.70
TbufferTankClosed
Buffer Tank temperature sensor is either shorted or measures
a temperature above range
H00.71
TbufferTankTopOpen
Buffer Tank top temperature sensor is either removed or
measures a temperature below range
11 Troubleshooting
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