DeDietrich MIT-M /E Installation, User And Service Manual page 102

11 Troubleshooting
Error Message
code
H02.36 Funct device lost
H02.37 Uncritic device lost
H02.60 Unsupported function
H06.01 HP Unit Failure
Tab.125 List of fault codes
Error Message
code
E00.00 TFlow Open
E00.01 TFlow Closed
102 MIT-M
Description
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.
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.
The zone doesn't support the selected function
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.
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.
As a result of:
a manual reset,
a maintenance message reset.
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
7756241 - v02 - 19062020