Incidents And Solutions - DeDietrich AWHP-V220 User Manual

6. Troubleshooting
6.2

Incidents and solutions

Problem
The radiators are cold.
There is no domestic hot
water.
Significant variations in
domestic hot water
temperature
The heat pump is not working.
The water pressure is too low
(< 1 bar).
23
Probable causes
The heating temperature setting
is too low.
The heating mode is
deactivated.
The radiator valves are closed. 4
The heat pump is not operating.
The water pressure is too low (<
1 bar).
The DHW temperature setting 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).
Insufficient water supply
The heating temperature setting
is too low.
The heat pump is not operating.
The water pressure is too low (<
1 bar).
An error code appears on the
display.
Not enough water in the
installation.
Water leak.
Solution
Increase the value of parameter d or, if a room thermostat
4
is connected, increase the temperature.
¼ See chapter: "Modifying the set room
temperature d ", page 16.
Activate the heating mode.
4
¼ See chapter: "Changing the operating mode",
page 17.
Open the valves on all radiators connected to the heating
system.
Check that the heat pump is switched on.
4
Check the fuses and switches on the electrical installation.
4
Top up the installation with water.
4
¼ See chapter: "Top up the installation with
water", page 20.
Increase the value of parameter r.
4
¼ See chapter: "Modifying the domestic hot
water temperature r ", page 16.
Activate the DHW mode.
4
¼ See chapter: "Changing the operating mode",
page 17.
Clean the shower head; replace if necessary.
4
Check that the heat pump is switched on.
4
Check the fuses and switches on the electrical installation.
4
Top up the installation with water.
4
¼ See chapter: "Top up the installation with
water", page 20.
Check the water pressure in the installation.
4
Open the valve.
4
Increase the value of parameter d or, if a room thermostat
4
is connected, increase the temperature.
¼ See chapter: "Modifying the set room
temperature d ", page 16
Check that the boiler is switched on.
4
Check the fuses and switches on the electrical installation.
4
Top up the installation with water.
4
¼ See chapter: "Top up the installation with
water", page 20.
Correct the error if possible.
4
¼ See chapter: "Error codes", page 22.
Top up the installation with water.
4
¼ See chapter: "Top up the installation with
water", page 20.
Contact the fitter.
4
AWHP-V220
26/10/2011 - 300026802-001-B