3
Operation manual
Special remarks
Troubleshooting
1. If Trouble persists
If the trouble persists even after checking the following, contact your dealer and inform them of the
following
items.
(1) Unit Model Name
(2) Content of Trouble
2. No Operation
Check whether the SET TEMP is set at the correct temperature.
CAUTION
3. Not Cooling or Heating properly
Check for obstruction of air flow
units.
in indoor and outdoor
Check if too many heating sources are located
in the room.
Check if the air filter is clogged with dust.
Check if the doors or windows are open.
Check if the temperature condition is not within the operation range.
4. This is Not Abnormal
Odour from indoor unit
Sound from Deforming Parts
Steam from Outdoor Heat Exchanger
During defrosting operation, ice on the outdoor heat exchanger melts resulting in steam.
Dew on Air Panel
When the cooling operation continues for a long period of time under high humidity conditions, dew may
form on the air panel.
Refrigerant Flow Sound
While the system is being started or stopped, sound from the refrigerant flow may be heard.
●
●
●
Heating
capacity
depends
on
external
factors
like
outdoor
unit
temperature
.
Heating
capacity
might
decrease
if outdoor
ambient
temperature
is
too
low
.
●
●
In several minutes after the heating mode is started, the fan of the indoor unit will not run until the heat
exchanger of the indoor unit reaches a certain temperature
to
prevent
cold
draft
.
●
When the outdoor temperature is too low, frost or ice may form on the outdoor heat exchanger, reducing
heating performance. When this happens, a defrosting system of the air conditioner will operate. At the same
time the fan in the indoor unit stops (or runs at a very low speed in some cases), to prevent cold draft. After
defrosting
is
over
,
the
heating
operation
and
fan
speed
restart
.
●
●
3 minutes protection after compressor stop
To protect compressor, it will be continue to be off for at least 3 minutes once it has stopped.
5 minutes protection
Compressor must run for
5 minutes once operational. In the 5 minutes, compressor will not stop even
at least
the room temperature reaches the setting
temperature
point unless you use remote
controller to turn off the
unit (all indoor unit can be turned off by user).
Cooling operation
The fan of the indoor unit will never stop running in cooling operation. It
even if the
continues to operate
compressor stops working.
Anti-freezing function during cooling
When the temperature of the air from the indoor outlet is too low, the unit will run for some time under the fan
mode, to avoid frost or ice forming on the indoor heat exchanger.
Cold air prevention
Defrosting
Blowing out the residual heating air
When stopping the air conditioner in normal operation, the fan motor will run with low speed for a while to blow
out the residual heating air.
Auto
re
-
start
from of Power Break
When the power supply is recovered after power
break, all presets are still effective and the air-conditioner will
run according to the previous setting.
Heating operation
●
During
system
start
or
stop
,
a
sound
might
be
heard
.
However
,
this
is
due
to
thermal
deformation
of
plastic
parts
.
It
is
not
abnormal
.
Unpleasant odour diffuses from
indoor
unit
after
a
long
period
of
time
.
Clean
the
air
filter
and
panels
or
allow
a
good ventilation
.
