Incidents And Solutions - DeDietrich Alezio V220 Evolution User Manual

8.2

Incidents and solutions

Problems Probable causes
The radiators are cold. The heating set point
temperature is too low.
The heating mode is
deactivated.
The radiator valves are
closed.
The heat pump is not
operating.
The water pressure is too
low (< 1 bar).
There is no domestic The domestic hot water
hot water. set point temperature is
too low.
The domestic hot water
mode is deactivated.
The energy-saving shower
head is restricting the
water flow.
The heat pump is not
operating.
The water pressure is too
low (< 1 bar).
Significant variations in Insufficient water supply
domestic hot water
temperature
The heat pump does The heating set point
not work. temperature is too low.
The heat pump is not
operating.
The water pressure is too
low (< 1 bar).
An error code appears on
the display.
7612035 - v02 - 12062014
Corrections
Increase the value of parameter
connected, increase the temperature on it.
See
User settings, page 17.
Activate the heating mode.
See
User settings, page 17.
Open the valves on all radiators connected to the heating system.
Check that the heat pump is switched on.
Check the fuses and switches on the electrical installation.
Top up the installation with water.
See
Top up the installation with water, page 22.
Increase the value of parameter
See
User settings, page 17.
Activate the domestic hot water mode.
See
User settings, page 17.
Clean the shower head; replace it if necessary.
Check that the heat pump is switched on.
Check the fuses and switches on the electrical installation.
Top up the installation with water.
See
Top up the installation with water, page 22.
Check the water pressure in the installation.
Open the valve.
Increase the value of parameter
connected, increase the temperature on it.
See
User settings, page 17.
Check that the boiler is switched on.
Check the fuses and switches on the electrical installation.
Top up the installation with water.
See
Top up the installation with water, page 22.
Correct the error if possible.
See
Error codes, page 24.
8 Troubleshooting
or, if a room thermostat is
.
or, if a room thermostat is
AWHP-2 MIV-3 V220 25