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37
Troubleshooting
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 air conditioner does not operate.
(Multi-monitor 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?
•
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 air conditioner may malfunction with lightning or
•
radio waves. Turn the breaker off, 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 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 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 con
fi
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.
Page 29
Front panel does not open.
(Multi-monitor lamp
fl
ashes.)
Is there something caught in the front panel?
•
Remove the object and attempt operation again using
the remote controller.
If the front panel still does not open and the multi-
monitor lamp is still
fl
ashing, consult the service shop
where you bought the air conditioner.
Front panel does not close
completely.
Are the front panel locks setting appropriately?
•
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2/16/2011 2:44:21 PM
2/16/2011 2:44:21 PM