18
Check of remote controller and receiver P.C. board
B
Indoor unit operates by pressing EMERGENCY OPERATION switch, but does not operate with the remote controller.
w
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
OPERATE/STOP(ON/OFF) button on
the remote controller.
Is noise heard from radio?
Are there any fluorescent lights of
inverter or rapid-start type within
the range of 1m?
Replace the indoor electronic
control P.C. board.
Replace the remote controller.
●
Reinstall the unit away from lights.
●
Attach a filter on receiving part.
Press OPERATE/STOP(ON/OFF) button
on the remote controller.
Is LCD display on the 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
No
(not clear)
Yes
No
No
No
OB378C--1.qxp 07.3.30 8:35 AM Page 18
