DE DIETRICH ALEZIO AWHP-V220 - Manual (Page 27)

6.2 Incidents and solutions
Problem Probable causes Solution
The radiators are cold.
The heating temperature
setting is too low.
4 Increase the value of parameter d or, if a room thermostat
is connected, increase the temperature.
¼See chapter: "Modifying the set room
temperature d", page 16.
The heating mode is
deactivated.
4
Activate the heating mode.
¼See chapter: "Changing the operating mode",
page 17.
The radiator valves are closed. 4 Open the valves on all radiators connected to the heating
system.
The heat pump is not operating.
4
Check that the heat pump is switched on.
4
Check the fuses and switches on the electrical installation.
The water pressure is too low (<
1 bar).
4
Top up the installation with water.
¼See chapter: "Top up the installation with
water", page 23.
There is no domestic hot
water.
The DHW temperature setting
is too low.
4
Increase the value of parameter r.
¼See chapter: "Modifying the domestic hot water
temperaturer", page 16.
The domestic hot water mode is
deactivated.
4 Activate the DHW mode.
¼See chapter: "Changing the operating mode",
page 17.
The energy-saving shower
head is restricting the water
flow.
4
Clean the shower head; replace if necessary.
The heat pump is not operating.
4
Check that the heat pump is switched on.
4
Check the fuses and switches on the electrical installation.
The water pressure is too low (<
1 bar).
4
Top up the installation with water.
¼See chapter: "Top up the installation with
water", page 23.
Significant variations in
domestic hot water
temperature
Insufficient water supply
4
Check the water pressure in the installation.
4
Open the valve.
The heat pump is not
working.
The heating temperature
setting is too low.
4
Increase the value of parameter d or, if a room thermostat
is connected, increase the temperature.
¼See chapter: "Modifying the set room
temperature d", page 16
The heat pump is not operating.
4 Check that the boiler is switched on.
4 Check the fuses and switches on the electrical installation.
The water pressure is too low (<
1 bar).
4 Top up the installation with water.
¼See chapter: "Top up the installation with
water", page 23.
An error code appears on the
display.
4 Correct the error if possible.
¼See chapter: "Error codes", page 25.
The water pressure is too
low (< 1 bar).
Not enough water in the
installation.
4 Top up the installation with water.
¼See chapter: "Top up the installation with
water", page 23.
Water leak.
4 Contact the fitter.
AWHP-V220 6. Troubleshooting
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