Fault Codes; Alarm Codes - DeDietrich MIV-4S AWHP 6 MR-3 User Manual

Error Message
code
H02.10 Full Block
H02.23 System flow error
H02.25 ACI error
H02.36 Funct device lost
H02.37 Uncritic device lost
H02.60 Unsupported function
H06.01 HP Unit Failure
Tab.29 List of fault codes
Fault code
E00.00
E00.01
E02.13
E02.24
Tab.30 List of alarm codes
Error code Message
A02.06 Water Press Warning
A02.18 OBD Error
A02.22 System flow warning
A02.55 Inval or miss SerNR
7682850 - v02 - 09012018
Description
Full blocking of the device recognized
BL input on the central unit PCB terminal block open
System water flow error active
Flow problem
Titan Active System short circuited or on an open circuit
Functional device has been disconnected
No communication between the central unit PCB and the additional circuit PCB
Uncritical device has been disconnected
No communication between the central unit PCB and the additional circuit PCB
The zone doesn't support the selected function
Heat Pump Unit Failure occured
Heat pump outdoor unit fault
9.1.2
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.
Message
TFlow Open
Flow temp sensor shorted or
above range
Blocking Input
System flow locking active
9.1.3
An alarm code is a temporary heat pump status, resulting from the detec­
tion of an anomaly. If an alarm code still remains after several automatic
start-up attempts, the system goes into fault mode.
When one of the following codes is displayed and the hybrid system can­
not restart automatically, contact a maintenance technician.
Description
Water Pressure Warning active
Object Dictionary Error
System water flow warning active
Invalid or missing device serial number

Fault codes

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
Blocking Input of the Control Unit from device external
environment
Input BL open.
System water flow locking active

Alarm codes

9 Troubleshooting
MIV-4S 47