Faults (code type lxx or dxx), 3 faults (code type lxx or dxx), Awhp-2 mit-in-2 isystem 5. troubleshooting – DE DIETRICH AWHP-2 MIT-IN-2 iSystem User Manual
Page 27
Code Messages
Description
Checking / solution
M04
REVISION
A service is required.
The date programmed for the service has been reached.
4
Service the heat pump.
4
To clear the inspection, programme another date in
the menu #REVISION or set the parameter REVISION
TYPE
to OFF.
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
Wait for the number of days shown to change to 0.
4
Set the parameter SCREED DRYING to OFF.
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.
5.3
Faults (Code type Lxx or Dxx)
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
AWHP-2 MIT-IN-2 iSystem
5. Troubleshooting
31/03/2014 - 7616372-001-02
26