DE DIETRICH AD281 - Manual (Page 23)

4 Troubleshooting
4.1 Messages (type code Mxx)
The module may display the following messages:
Code
no. Messages Description Checking / solution
FL.DRY.B XX DAYS Floor drying is active
XX
DAYS = Number of days' floor
drying remaining.
Floor drying is underway. Heating on the circuits not
concerned is shut down.
4
Contact the professional who takes care of
maintenance of the appliance.
FL.DRY.C XX DAYS
FL.DRY.B+C XX DAYS
M30 BL.COM.MODBUS No communication with the master
regulation by the network
MODBUS.
Contact the professional who takes care of
maintenance of the appliance.
M31 BL.SYSTEM NETWORK Incorrect configuration of the
network MODBUS.
Contact the professional who takes care of
maintenance of the appliance.
4.2 Faults
If a malfunction occurs, the module flashes and displays an error
message and a corresponding code.
1. Make a note of the code displayed.
The code is important for the correct and rapid diagnosis of the
type of failure and for any technical assistance that may be
needed.
2. Press the ? key. Follow the instructions displayed to solve the
problem.
3. Consult the meaning of the codes in the table below:
bar
1
1
2
2
D
STD
J I
E
0 2 4 6 8 10 12 14 16 18 22 24 20
# F
AUTO % $
<
:  !
SUNDAY 11:45
TEMP. : 68°
PCU COM.FAIL D27
C002302-D-04
VM iSystem 4. Troubleshooting
17/11/2011 - 300028026-001-A 22