DE DIETRICH MODULENS AGC 15, AGC 25, AGC 35 - Manual (Page 31)

Code Messages Description Checking / solution
B27 BL.DHW INST The sensor on the plate
exchanger outlet is disconnected
or short circuited
4
Contact the professional who takes care of
maintenance of the appliance
B28 BL.BAD.CONFIG 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
4 Wait for 10 seconds to see whether the error persists
4
Contact the professional who takes care of
maintenance of the appliance
B29 to
B34
BL.UNKNOWN Bxx Incorrect configuration of the
PCU
4
Contact the professional who takes care of
maintenance of the appliance
M04 REVISION A service is required The date programmed for the service has been reached
4
If the symbol ? flashes, press key ?. The installer’s
contact details are displayed.
4 Contact the professional who takes care of
maintenance of the appliance
M05 REVISION A An A, B or C service is required The date programmed for the service has been reached
4 If the symbol ? flashes, press key ?. The installer’s
contact details are displayed.
4
Contact the professional who takes care of
maintenance of the appliance
M06 REVISION B
M07 REVISION C
M20 DISGAS A boiler vent cycle is underway Switching the boiler on
4
Wait 3 minutes
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
M23 CHANGE OUTSI.S The outside temperature sensor
is defective.
Change the outside radio temperature sensor.
6.3 Faults (Code type Lxx or Dxx)
In the event of operational failure, the control panel 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 t key. If the code is displayed again, switch off the boiler
and then switch it back on.
bar
1
1
2
2
D
STD
J
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
C002604-B-04
AGC 10/15 AGC 15 AGC 25 AGC 35 6. Troubleshooting
03/12/2013 - 300026080-001-03 30