Signal cannot be
received
(Remote controller
display is dim or
blank)
• Do the batteries need replacement?
• Is the polarity of the inserted batteries correct?
Operation does not
start
• Is the fuse blown out or circuit breaker tripped?
• Is there a blackout? (Operation remains idle after a blackout.)
Does not cool well
Does not heat well
• Is the micro mesh stainless filter blocked with dust?
• Is the set temperature suitable?
• Have the horizontal air deflector been adjusted to the correct positions according to
the operation mode selected?
• Are the air inlets and air outlets of indoor and outdoor units blocked?
• Is the fan speed “LOW” or “SILENT”?
(FILTER CLEAN)
• Check “filter cleaning operation”.
TROUBLESHOOTING (continued)
PLEASE CHECK THE FOLLOWING BEFORE SERVICE
indicator blinks
FROST WASH OPERATION
(FROST WASH)
indicator blinks
Noise occurred
during frost wash
operation
Frost wash operation
does not start
Is the total operation time of the air conditioner beyond about 42 hours when the
air-conditioner is operated for about 30 minutes and stopped?
It does not wash when outside temperature is less than about 1 degrees Celsius or
It does not wash when the humidity in the room is about 30% or less or about 70% or
more than 43 degrees Celsius.
more.
When "FROST WASH" is done by operating a remote controller, it does not wash
Does not change to non -automatic "FROST WASH"?
Within 60 minutes after the end of "FROST WASH", "FROST WASH" is not operated
for product protection.
Does it happen after "sleep" and "time off"?
Automatic "FROST WASH" interval becomes longer. Please operate manual
"FROST WASH" with remote controller.
It is the sound that the internal machine is inflated and contracted by the temperature
change and the fin of the heat exchanger is frozen and thawed
Repeat for 1 secondǂ on and 1 second off for 10 seconds
Because "FROST WASH" can no
t work when operating the "FROST WASH" with
The air conditioner is operating
Outside air temperature, room temperature and room humidity are not
It has not been over 60 minutes since the end of "FROST WASH"
remote controller.
suitable for "FROST WASH"
Repeat for 4 seconds on and 1 second off for 15 seconds
Because it is not "FROST WASH" for a long time.
Operate the remote controller to operate "FROST WASH".
·
·
·
when the room temperature is less than about 10 degrees Celsius or more than about
32 degrees Celsius.
TROUBLESHOOTING (continued)
Odors
In heating operation,
(HEATING) indicator blinks
Indicates preheating or defrosting operation is underway
(FILTER CLEAN),
indicators lit after the
operations
Indicates operation is underway.
Hissing or fizzy sound
Refrigerant flow noise in the pipe or valve sound generated when flow rate
is adjusted.
Squeaking noise
Noise generated when the unit expands or contracts due to temperature
changes.
Rustling sound
Noise generated with the indoor unit fan’s rpm changing such as operation
start times.
Clicking sound
Noise of the motorized valve when the unit is switched on.
Operation sound changes
Operation noise changes due to power variations according to room
temperature changes.
Mist emission
Mist is generated as the air within the room is suddenly cooled by
conditioned air.
Steam emitted from outdoor unit
Water generated during defrosting operation evaporates and steam is
emitted.
Outdoor unit continues to
operate even if operation is
stopped and
( )
indicator blinks
Auto fresh defrosting is activated (as the heating operation is stopped, the
microcomputer checks frost accumulated in the outdoor unit and instructs
the unit to perform automatic defrosting if necessary).
Preset temperature cannot be
reac
hed
Depending on the number of person in the room and the conditions of
the room, actual room temperature may deviate slightly from the remote
controller’s setting.
THE FOLLOWING CASES DOES NOT INDICATE MALFUNCTION
Caused as the smells and particles of smoke, food, cosmetics, etc. present in room
air become attached the unit and blown off into the room again.
HEATING
(FROST WASH),
fliter clean or frost wash
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