Faults (code type lxx or dxx), 3 faults (code type lxx or dxx), Troubleshooting mca 35 33 – DE DIETRICH INNOVENS MCA 35 User Manual
Page 34
Code Messages
Description
Checking / solution
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.
STOP N XX
The shutdown is active
XX
= Number of the active
shutdown
A shutdown is underway. The circuits selected for this stop are
in Antifreeze mode during the period chosen.
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.
3. Press the ? key. Follow the instructions displayed to solve the
problem.
4. Consult the meaning of the codes in the table below:
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
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
6. Troubleshooting
MCA 35
33
24/08/2011 - 300024162-001-B