Troubleshooting measures are classifi ed into the following •
2 types on a remedial basis.
Take an appropriate measure according to the symptom.
Not trouble
These cases are not troubles.•
Check
Please check again before calling a •
repair person.
The air conditioner does not operate.
(Multi-monitor lamp is off.)
Has a circuit breaker turned off or a fuse blown? •
Is it a power failure? •
Are batteries set in the remote controller? •
Is the timer setting correct?•
Cooling (Heating) effect is poor.
Are the air fi lters clean?•
Is there anything blocking the air inlet or the outlet of •
the indoor and the outdoor units?
Is the temperature setting appropriate?•
Are the windows and doors closed?•
Are the airfl ow rate and the airfl ow direction set •
appropriately?
Is the air conditioner in ECONO operation or •
OUTDOOR UNIT QUIET operation?
An abnormal functioning happens
during operation.
The air conditioner may malfunction with lightning or •
radio waves. Turn off the circuit breaker, turn it on
again and try operating the air conditioner with the
remote controller.
Operation stopped suddenly.
(Multi-monitor lamp fl ashes.)
Are the air fi lters clean?•
Clean the air fi lters.
Is there anything blocking the air inlet or the outlet of •
the indoor and the outdoor units?
•
Turn off the circuit breaker and take all obstacles away.
Then turn it on again and try operating the air conditioner
with the remote controller. If the lamp still fl ashes, call
the service shop where you bought the air conditioner.
Are operation modes all the same for indoor units •
connected to outdoor units in the multi system?
If not, set all indoor units to the same operation mode
and confi rm that the lamps fl ash.
Moreover, when the operation mode is in AUTO, set all
indoor unit operation modes to COOL or HEAT for a
moment and check again that the lamps are normal. If
the lamps stop fl ashing after the above steps, there is
no malfunction.
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Upper and lower front panels do not
open. (Multi-monitor lamp fl ashes.)
Is there something caught in the upper and lower front •
panels?
Remove the object and attempt operation again using
the remote controller.
If the upper and lower front panels still do not open
and the multi-monitor lamp is still fl ashing,
consult the service shop where you bought
the air conditioner.
Upper front panel does not close
completely.
•
Are the upper front panel locks set appropriately?
Mist comes out of the indoor unit.
This happens when the air in the room is cooled into •
mist by the cold airfl ow during COOL operation.
This is because the air in the room is cooled by the •
heat exchanger and becomes mist during
defrost operation.
