E N - 4
3 . S er v i c e a nd m a i nt ena nc e
T r o u b l es h o o t i ng
The following table is to be used as a guide to possible problems. It is not exhaustive and all problems should be investigated by the installer or another competent person.
Users should not attempt to repair the system themselves.
F a u l t s y m p t o m
Possible cause
S o l u t i o n
Cold water at taps
(system with DHW tank)
All hot water from DHW tank used
Ensure DHW mode is operating and wait for DHW tank to re-heat.
Heat pump or electric heaters not working
Contact installer.
Heating system does not get up to
set temperature.
Prohibit, schedule or holiday mode selected
Check settings and change as appropriate.
Incorrectly sized heat emitters
Contact installer.
The room thermostat is located is at a different tem-
perature to the rest of the house.
Reposition the room thermostat to a more suitable room.
An error code appears in the main
remote controller display.
The indoor or outdoor unit is reporting an abnormal
condition
Make a note of the error code number and contact installer.
<Power failure>
All setting will be saved for 1 week with no power, after 1 week Date/Time ONLY will be saved.
en
BH79D860H01_01en.indd 4
2019/11/25 10:00:10
006
