Error code
Description
H00.48
Heat pump flow temperature sensor is either shorted or measures a temperature above range
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
H00.51
Heat pump return temperature sensor is either removed or measures a temperature below
range
H00.52
Heat pump return temperature sensor is either shorted or measures a temperature above
range
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
H00.57
Domestic Hot Water top temperature sensor is either removed or measures a temperature
below range
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
H00.58
Domestic Hot Water top temperature sensor is either shorted or measures a temperature
above range
Check the wiring between the central unit PCB and the sensor.
Check that the sensor has been fitted properly.
Check the Ohmic value of the sensor.
Replace the sensor if necessary.
H02.00
Reset In Progress
H02.02
Waiting For Configuration Number
Waiting for configuration parameters to be entered
Configure CN1 / CN2 depending on the output of the outdoor unit installed (CNF menu).
Central unit PCB replaced: heat pump not configured
H02.03
Configuration Error
The configuration parameters entered are incorrect.
Configure CN1 / CN2 depending on the output of the outdoor unit installed (CNF menu).
H02.04
Parameter Error
Restore the factory settings.
If the error is still present: change the central unit PCB.
H02.05
CSU does not match CU type
Software change (software number or version parameter inconsistent with the memory).
H02.07
Water Pressure Error active
Check the hydraulic pressure in the heating circuit.
Check the wiring between the central unit PCB and the pressure sensor.
Check the connection of the pressure sensor.
H02.09
Partial blocking of the device recognized
BL input on the central unit PCB terminal block open
Check the contact on the BL input.
Check the wiring.
Check the AP001 and AP100. parameters.
H02.10
Full blocking of the device recognized
BL input on the central unit PCB terminal block open
Check the contact on the BL. input.
Check the wiring.
Check the AP001 and AP100. parameters.
11 Troubleshooting
7701563 - v02 - 22052018
iHPI
93
