39
• Troubleshooting measures are classi
fi
ed into the following two 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 unit does not operate.
(OPERATION lamp is off.)
• Hasn’t a breaker turned off or a fuse blown?
• Isn’t it a power failure?
• Are batteries set in the remote controller?
• Is the timer setting correct? Check if the timer
operation lamp is on.
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Cooling (Heating) effect is poor.
• Are the air
fi
lters clean?
• Is there anything to block 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 air
fl
ow rate and the air
fl
ow direction set
appropriately?
An abnormal functioning happens
during operation.
• The unit may malfunction with lightning or radio waves.
Turn the breaker off, turn it on again and try operating
the unit with the remote controller.
Operation stopped suddenly.
(OPERATION lamp
fl
ashes.)
• Are the air
fi
lters clean?
Clean the air
fi
lters.
• Is there anything to block the air inlet or the outlet of
the indoor and the outdoor units?
• Turn the bleaker off and take all obstacles away. Then
turn it on again and try operating the unit with the
remote controller. If the lamp still
fl
ashes, call the
service shop where you bought the unit.
Operation stopped suddenly.
(OPERATION lamp is on.)
• For system protection, the unit may stop operating on
a sudden large voltage
fl
uctuation. It automatically
resumes operation in about 3 minutes.
Mist comes out of the indoor unit.
• This happens when the air in the room is cooled into
mist by the cold air
fl
ow during COOL operation.
• This is because the air in the room is cooled by the
heat exchanger and becomes mist during defrost
operation.
Troubleshooting
