Phenomenon
Cause or check points
Poor cooling or poor
heating
I
s the air filter dirty?normally it should be cleaned every 15 days.
Are there any ostacles before inlet and outlet?
Is temperature set correctly ?
Are there some doors or windows left open?
Is there any direct sunlight through the window during the cooling
operation(use curtain)
Are there too much heat sources or too many people in the room
during cooling operation?
IS the horizontal flap direction right?
It should be kept hori
zontal or upward during cooling operation
while set horizontal or downward during heating operation.
Water leakage
The air filter is dirty
.The unit is tilt installed.
A swishing or gurgling noise
is heard
During unit operation or at stop, a swishing or gurgling noise may be
heard .At first 2-3 minutes after unit start, this noise is more noticeable
(This noise is generated by refrigerant flowing in the system.)
A cracking noise is heard
During unit operation, a cracking noise may
be heard.This noise is
generated by the casing expanding or shrinking because of
temperature changes.
Smells are generated
The is because the system circulates smells from the interior air
such as the smell of furniture, paint, cigarettes.
Mist or steam are blown out
During COOL or DRY operation, indoor unit may blow out mist.
This is due to the sudden cooling of indoor air.
COOL mode
changes to FAN
mode
automatically
To avoid frosting on the heat exchanger of the indoor unit, the air
condit
ioner sometimes changes to FAN mode in COOL operation.but
immediately it will change back to COOL mode.
The system does not restart
immediately
In HEAT mode, the outdoor
unit generates water
or steam.
This is because the frost on the heat exchanger of the outdoor unit
is melting (in COOL operation) .
the fan motor of indoor unit will
continue running
even though
the HEAT operation is stopped.
For the sake of removing the remaining heat, the fan motor of
indoor unit will continue running for some time afte
r the heat
operation’s stop.
In DRY mode, fan speed can’t
be changed.
In DRY mode, when room temperature becomes lower than temp.
setting +2 unit will run intermittently at LOW speed regardless
of FAN setting.
None of the units operates
Check the power supply: make sure the rated voltage is supplied.
Check if the residual current circuit breaker trip?(make sure cut off
the power supply off and contact the service station immediately. )
The temperature displayed on
the control panel is differ
ent
from the temperature detected
by the user
In consideration of the temperature difference in the room,
the air conditoner will automatically compensate the temperature
In order to improve the comfortableness .therefore it is normal
phenomenon.
When unit is stopped, it won’t restart immediately unit 3 minutes have
elapsed to protect the system. When the electric plug is pulled out
and reinserted, the protection circuit will work for 3 minutes to protect
the air conditioner.
Trouble shooting
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