35
Troubleshooting
The air conditioner 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?•
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 breaker 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 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.
Page 27
►
The surface temperature and
condition of the radiant panel are
abnormal.
The radiant panel is not warmed up during
RADIANT1 or RADIANT2 operation.
The HEAT operation is used independently,
but the radiant panel is hot.
The COOL operation is used, but the radiant
panel is cold, frosted, and/or dewy.
The operation has stopped, but the OPERA-
TION lamp (green) is blinking.
Consult the service shop or the dealer where you •
bought your air conditioner.
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 airfl ow rate and the airfl ow direction set appro-•
priately?
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 control-
ler.
Troubleshooting measures are classifi 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.
01_EN_3P276869-1A.indb 3501_EN_3P276869-1A.indb 35 8/8/2012 4:18:34 PM8/8/2012 4:18:34 PM
To Next Page
