Danfoss DHP-H User Manual page 41

Message Meaning
SENSOR HOT Fault in the hot water sensor.
WATER No hot water production.
ALARM The actual room temperature is
ROOM not displayed. To calculate the
SENSOR supply temperature's desired
value, use 20°C instead.
ERR PHASE The compressor in the heat
SEQ. pump is operating in the
wrong direction and this means
that only the auxiliary heater is
maintaining heating.
HIGH RETURN The temperature of the water
that returns from the radiators
is too high and prevents the
heat pump from working
The following table only applies to installations that use ground water as refrigerant.
Message Meaning
BRINE OUT Brine lower than set tempera-
ture. The compressor stops and
there is no hot water produc-
tion.
BRINEFLOW The flow switch was not active
LOW during the latest start. The
compressor stops and there is
no hot water production.
Cause
Electrical fault.
Electrical fault.
The phase
sequence changed
when changes
were made in the
electrical installa-
tion of the house.
Insufficiently
opened radiator/
floor loop thermo-
stats.
Cause
The lowest set
brine temperature
has been reached.
Brine's flow is low.
VUBMA102
Remedy
Contact your
installer.
Contact your
installer.
Contact your
installer.
Ensure that all
thermostat valves
are fully open.
Remedy
The system resets
itself when the
temperature has
risen to the set
value.
Contact your
installer.
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