DANFOSS AIR
18
5.0 Trouble shooting
Symptom
Cause
How to solve
Alarm beeper
active on Air Dial
remote c
text in display:
The reason for the alarm can be
read in the display - push or rotate
dial to enter alarm screen. The
alarm screen will indicate what
type of alarm is present.
Depending on alarm - follow instruc-
tions as given below and sign “OK” for
alarm on the Air Dial remote control.
Alarm: Filter
error
Air filters are dirty
Change air filters, see chapter 3.1 for
instructions
Alarm: Battery
low
Battery voltage is too low in the
Air Dial remote control.
Exchange batteries (4 x AAA) in Air
Dial, see instructions in chapter 3.2
Alarm: No con-
nection to CCM
The communication between the
Air Dial remote control and the
CCM module has failed. The cause
is typically that a barrier has been
created in the vicinity of the CCM
module. A barrier could be steel
piping, other steel objects, or insu-
lation material clad with aluminum
foil. Another cause can be other
wireless appliances that does not
conform to wireless standards
(radio noise).
If a barrier has been identified, move
it, if possible. If this is not practical,
relocate the CCM module to a better
location with a free “line of sight”. If
the error occurs due to other wireless
appliances in your house, try switch-
ing these off in turn, to identify the
faulty device.
If none of the above helps, please
contact your installer.
Alarm: No
connection via
modbus
The cable from the CCM module to
the unit has been unplugged or is
defective.
Check cable and reconnect if neces-
sary. If cable is connected, but error
still occurs - contact your installer.
Alarm: Room air
too cold
The central heating system in the
building is not supplying heat. The
room temperature is dropping,
so the unit turn off, to reduce
involuntary heat loss. Alarm active
if the Air Dial measures a room
temperature below +10˚C
Check if heating system is functional.
If the problem can not be solved,
contact the plumber / installer respon-
sible for your heating system.
Alarm: Fire
One of the four temperature
sensors in the Danfoss Air unit, or
the temperature sensor in the Air
Dial remote control has detected
a temperature higher than +70˚C!
Unit turns off, and does not
continue operation again until all
the sensors indicate < +70˚C
Check all rooms, leave the premises.