ENGLISH
42
8
Troubleshooting
8 .1
Alarm
In the event of an error message try restarting the installation using the installation’s safety
switch.
If restarting the heat pump does not help try rectifying the problem using the table below.
Contact your installer, see ”References” section, if you are unable to rectify the problem
yourself.
Message
Meaning
Cause
Remedy
LOWPRESS
ERROR
LOWPRESS ERROR - The
compressor stops and there
is no hot water production.
Not enough fluid in
the brine system.
Air in the brine
system. Blocked
filter in the brine
system.
Contact your ins-
taller.
HIGHPRESS
ERROR
HIGHPRESS ERROR - The
compressor stops and there
is no hot water production.
Insufficiently ope-
ned radiator/floor
loop thermostats.
Air in the heating
system. Blocked
strainer in the hea-
ting system.
Open radiator /
floor loop thermos-
tats. Top up and
bleed the heating
system or contact
your installer.
MOTOR P
ERROR
Motor protection cut out. The
compressor stops and there
is no hot water production.
Power failure cau-
sed by a blown
fuse or the safety
switch has deplo-
yed.
Check the fuses
and reset the safe-
ty switch.
ALARM
AUXILIARY
HEATER
Overheating protection deplo-
yed.
Electrical fault. The
safety switch has
tripped.
Contact your ins-
taller.
SENSOR
OUTDOOR
Fault in outside sensor.
To calculate the supply
temperature’s desired value,
use 0°C instead.
Electrical fault.
Contact your ins-
taller.
SENSOR
SUPPLY LINE
Incorrect supply sensor.
Everything stops except the
circulation pump for the hea-
ting system.
Electrical fault.
Contact your ins-
taller.
SENSOR
RETURN LINE
Return sensor fault.
Electrical fault.
Contact your ins-
taller.