DeDietrich ALEZIO S, Руководство пользователя

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7 Troubleshooting
7.1 Resolving operating errors
If your appliance malfunctions, a message containing an error code is
displayed on the main screen of the control panel. This error code is
important for the correct and rapid diagnosis of the type of malfunction and
for any technical assistance that may be needed.
There are 3 error types.
Tab.25
Error type Code format
Error Hxx.xx
Fault Exx.xx
Alarm Axx.xx
Warning
Only qualified professionals are authorized to carry out
maintenance and repair work.
1. Make a note of the code displayed on the screen.
2. Remedy the problem described by the error code.
3. Switch the heat pump off and back on to check that the cause of the
error has been removed.
4. If the code is displayed again, contact the technical support.
7.2 Fault finding
Tab.26
Problems Probable causes Corrections
The radiators are cold. The heating set point tem­
perature is too low.
Increase the value of the room temperature set point or, if a room ther­
mostat is connected, increase the temperature on it.
The heating mode is deac­
tivated.
Activate the heating mode.
The radiator valves are
closed.
Open the valves on all radiators connected to the heating system.
The heat pump is not op­
erating.
Check that the heat pump is switched on.
Check the fuses and switches on the electrical installation.
The water pressure is too
low (< 1 bar).
Top up the system with water.
There is no domestic
hot water.
The domestic hot water
set point temperature is
too low.
Increase the domestic hot water set point temperature.
The domestic hot water
mode is deactivated.
Activate the domestic hot water mode.
The appliance is in re­
duced domestic hot water
mode
Check and modify the comfort and reduced time ranges for the domes­
tic hot water.
Adapt the domestic hot water set point temperature.
The shower head is re­
stricting the water flow.
Clean the shower head; replace it if necessary.
The heat pump is not op­
erating.
Check that the heat pump is switched on.
Check the fuses and switches on the electrical installation.
The water pressure is too
low (< 1 bar).
Top up the installation with water.
Significant variations in
domestic hot water
temperature
Insufficient water supply Check the water pressure in the installation.
Open the valve.
The domestic hot water
hysteresis is too high
Contact the professional responsible for maintenance of the heat pump.
7 Troubleshooting
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