DeDietrich AWHP 11 MR, User Manual

Page: 25 / 36

Code Messages Description Checking / solution
B09 BL.BL INPUT OPEN
The BL inlet on the PCU PCB
terminal block is open. Antifreeze
protection.
The contact connected to the
BL
inlet is open.
4
Contact the professional who takes care of
maintenance of the appliance.
Parameter error.
4
Contact the professional who takes care of
maintenance of the appliance.
Bad connection.
4
Contact the professional who takes care of
maintenance of the appliance.
B10 BL.GROUP.EXT.
Failure outside unit.
4
Contact the professional who takes care of
maintenance of the appliance.
B11 BL.COM SCU
Communication error with the
SCU PCB.
4
Contact the professional who takes care of
maintenance of the appliance.
B12 BL.WATER MIS.
The water pressure is lower than
0,5 bar
Not enough water in the circuit.
4
Top up the installation with water.
B13 BL.DHW. S.
The DHW tank sensor is
disconnected or short circuited
Bad connection.
4
Contact the professional who takes care of
maintenance of the appliance.
B14 BL.OUTSIDE.S
The outside temperature sensor is
disconnected or short circuited.
Bad connection.
4
Contact the professional who takes care of
maintenance of the appliance.
B17 BL.PCU ERROR
The parameters saved on the
PCU PCB are impaired.
Parameter error on the PCU PCB.
4
Contact the professional who takes care of
maintenance of the appliance.
B18 BL.BAD PSU
The PSU PCB is not recognised Wrong PSU PCB for this heat pump.
4
Contact the professional who takes care of
maintenance of the appliance.
B19 BL.NO CONFIG
The inside module has not been
configured.
The PSU PCB has been changed.
4
Contact the professional who takes care of
maintenance of the appliance.
B39 BL.FLOW
Low flow rate.
4
Contact the professional who takes care of
maintenance of the appliance.
B40 BL.FLOW.STOP
Flow rate fault.
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
Service the heat pump.
4
To clear the inspection, programme another date in the
menu
#REVISION
or set the parameter
REVISION
TYPE
to
OFF
.
M05 REVISION A
An A, B or C service is required. The date programmed for the service has been reached.
4
Service the heat pump.
4
To clear the inspection, press key
t
.
M06 REVISION B
M07 REVISION C
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.
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.
4
Wait until the end date has been passed.
4
Set the parameter
STOP N XX
to
OFF
.
AWHP MIT-IN iSystem 5. Troubleshooting
06/09/2012 - 300027618-001-01 24