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Error code Message
H02.04
PARAMETER ERROR
H02.05
CSU
H02.07
WATPRESSURE
ERROR
H02.09
PARTIAL BLOCK
H02.10
FULL BLOCK
H02.23
SYSTEM FLOW ERROR Flow problem
H02.36
FUNCTIONAL DEVICE
DISCONNECTED
H02.37
UNCRITICAL DEVICE
DISCONNECTED
H06.01
HP UNIT FAILURE
Tab.33
List of fault codes
Fault code Message
E02.13
BLOCKING INPUT
E02.24
SYSTEM FLOW
LOCKING
Tab.34
List of alarm codes
Error code Message
A02.06
WATPRESSURE
WARNING
A02.22
SYSTEM FLOW
WARNING
8.2
Accessing the error log
7623755 - v05 - 27042017
Description
Memory error
Insufficient water pressure
Check the hydraulic pressure in the heating circuit.
BL input on the central unit PCB terminal block open
BL input on the central unit PCB terminal block open
No communication between the central unit PCB and the additional circuit PCB
No communication between the central unit PCB and the additional circuit PCB
Heat pump outdoor unit defective
8.1.2
Fault codes
If a fault code is still present after several automatic start-up attempts, the
heat pump switches to error mode.
The heat pump will only resume normal operation once the causes of the
fault have been eliminated by the installer.
When one of the following codes is displayed and the heat pump cannot
restart automatically, contact a maintenance technician.
Description
Input BL open.
Heating water flow problem
8.1.3
Alarm codes
An alarm code corresponds to a temporary status of the hybrid pump re
sulting from the detection of an anomaly. If an alarm code still remains af
ter several automatic start-up attempts, the hybrid system goes into error
mode.
When one of the following codes is displayed and the hybrid system can
not restart automatically, contact a maintenance technician.
Description
Water pressure in the installation lower than the minimum pressure
Flow rate in the installation lower than the minimum flow rate
Note
The error and fault codes are listed together in the log.
8 Troubleshooting
MIV-4
53
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Troubleshooting
