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9
Troubleshooting
9.1
Error codes
Tab.37
List of temporary error codes
Error
Message
code
H00.17
DHW sensor Closed
H00.32
TOutside Open
H00.33
TOutside Closed
H00.34
TOutside Missing
H00.47
HP flow sensor removed
or below range
H00.48
THp Flow Closed
H00.51
THp Return Open
H00.52
THp Return Closed
H00.57
T DHW Top Open
H00.58
T DHW Top Closed
H02.00
Reset In Progress
H02.02
Wait Config Number
H02.03
Conf Error
H02.04
Parameter Error
H02.05
CSU CU mismatch
H02.07
Water Press Error
H02.09
Partial block
H02.10
Full Block
H02.23
System flow error
H02.25
ACI error
7611444 - v06 - 04032019
9.1.1
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.
When one of the following codes is displayed and the heat pump cannot
restart automatically, contact a maintenance technician.
Description
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
Outside temperature sensor was expected but not detected
Heat pump flow temperature sensor is either removed or measures a temperature
below range
Heat pump flow temperature sensor is either shorted or measures a temperature
above range
Heat pump return temperature sensor is either removed or measures a temperature
below range
Heat pump return temperature sensor is either shorted or measures a temperature
above range
Domestic Hot Water top temperature sensor is either removed or measures a
temperature below range
Domestic Hot Water top temperature sensor is either shorted or measures a
temperature above range
Reset In Progress
Waiting For Configuration Number
Configuration Error
Parameter Error
CSU does not match CU type
Water Pressure Error active
Check the hydraulic pressure in the heating circuit.
Partial blocking of the device recognized
BL input on the central unit PCB terminal block open
Full blocking of the device recognized
BL input on the central unit PCB terminal block open
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.
Titan Active System short circuited or on an open circuit
9 Troubleshooting
51
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Table of Contents
Troubleshooting
