24
B Check of remote controller and indoor electronic control P.C. board
No
(not clear)
Check if the remote controller is exclusive for this air conditioner.
Yes
Replace the batteries. (Refer to 9-1.4.)
Turn ON a radio to AM and press OPER-
ATE/STOP (ON/OFF) button on the remote
controller.
1
Is noise heard from radio?
Are there any fluorescent lights of
inverter or of rapid-start type within
the range of 1 m?
2
Replace the indoor electronic
control P.C. board.
Switch on the remote controller.
Is the LCD display on the remote
controller visible?
Remove the batteries, then set them back
and press RESET button. (Refer to 9-1.4.)
Check if the unit operates with the remote
controller.
Yes
Does the unit operate with the
remote controller?
Yes
OK
Yes
No
No
Replace the remote controller.
Reinstall the unit away from lights.
Attach a filter on receiving part.
No
1 Look at the image of the signal transmitting section of
the remote controller through the monitor of a digital
camera or a camera phone. It is normal if the LED of
the signal transmitting section lights up when the OP-
ERATE/STOP (ON/OFF) button on the remote control-
ler is pressed. However, it may be diffi cult to see the
illuminated LED of the signal transmitting section with a
smartphone camera.
2 If the inverter fl uorescent light is turned on when the
room is cool, the unit may have diffi culty receiving the
signal from the remote controller or may not be able to
operate with it; if the inverter fl uorescent light is turned
on when the room is warm, the unit may be able to
operate with the remote controller.
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