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ENGLISH
43
EN
Message
Meaning
Cause
Remedy
SENSOR HOT
WATER
Fault in the hot water sensor.
No hot water production.
Electrical fault.
Contact your ins-
taller.
ALARM
ROOM
SENSOR
The actual room temperature
is not displayed. To calculate
the supply temperature’s desi-
red value, use 20°C instead.
Electrical fault.
Contact your ins-
taller.
ERR PHASE
SEQ.
The compressor in the heat
pump is operating in the wrong
direction and this means that
only the auxiliary heater is
maintaining heating.
The phase
sequence chan-
ged when chan-
ges were made
in the electrical
installation of the
house.
Contact your ins-
taller.
HIGH
RETURN
The temperature of the water
that returns from the radiators
is too high and prevents the
heat pump from working
Insufficiently ope-
ned radiator/floor
loop thermostats.
Ensure that all
thermostat valves
are fully open.
The following table applies only for installations that use groundwater as brine.
Message
Meaning
Cause
Remedy
BRINE OUT
Brine lower than set tempe-
rature. The compressor stops
and there is no hot water pro-
duction.
The lowest set
brine temperature
has been reached.
The system resets
itself when the
temperature has
risen to the set
value.
BRINEFLOW
LOW
The flow switch was not active
during the latest start. The
compressor stops and there is
no hot water production.
Brine’s flow is low. Contact your ins-
taller.