Faults (Code Type Lxx Or Dxx) - DeDietrich AFC 30 User Manual

AFC 18 - AFC 24 - AFC 30
Code Messages
B28 BL.BAD.CONFIG
B29 to
BL.UNKNOWN Bxx
B34
M08 REVISION AUTO
M23 CHANGE OUTSI.S
BL.SYSTEM NETWORK No communication with the master
M30
M31 BL.COM MODBUS
7.3

Faults (Code type Lxx or Dxx)

0 2 4 6 8
E 1
TEMP. : 68°
2
1
D
2
PCU. COM. FAIL. D27
bar
# F
% $
AUTO
J
0 2 4 6 8 10 12
E
1 TEMP. : 68°
2
1
D
2 PCU COM.FAIL D27
bar
# F !

% $
AUTO
J
I
STD
15/07/2015 - 300026440-05
Description
An HL tank is detected whilst the
boiler cannot control it.
This message disappears after
10 seconds if the boiler can control
the HL tank
Incorrect configuration of the PCU 4
An automatic service is requested The date programmed for the service has been
The outside temperature sensor is
defective.
regulation through the MODBUS
network
Incorrect configuration of the
MODBUS network
10 12 14 16 18 20 22 24
SUNDAY 11:45
 !
:
<
STD
C002604-B-04
14 16 18 20 22 24
SUNDAY 11:45
:
<
C002302-D-04
Checking / solution
4
4
reached.
4
4
4
4
4
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 t key. If the code is displayed again, switch off the boiler
and then switch it back on.
3. Press the ? key. Follow the instructions displayed to solve the
problem.
4. Consult the meaning of the codes in the table below:
Wait for 10 seconds to see whether the error
persists
Contact the professional who takes care of
maintenance of the appliance
Contact the professional who takes care of
maintenance of the appliance.
If the symbol ? flashes, press key ?. The
installer's contact details are displayed.
Contact the professional who takes care of
maintenance of the appliance.
Contact the professional who takes care of
maintenance of the appliance.
Contact the professional who takes care of
maintenance of the appliance
Contact the professional who takes care of
maintenance of the appliance
7. Troubleshooting
36