MITSUBISHI ELECTRIC MSZ-FD25VAS User Manual

Page 29

Check of remote controller and indoor electronic control P.C. board

Indoor unit operates by pressing EMERGENCY OPERATION switch, but does not operate with the remote controller.

Check if the remote controller is exclusive for this air conditioner.

Yes

Replace the batteries. (Refer to 10-1.4.)

Is noise heard from radio?

Are there any fluorescent lights of
inverter or rapid-start type within
the range of 1 m?

Replace the indoor electronic
control P.C. board.
(including the receiver)

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 remote con-
troller visible?

Remove the batteries, then set them back
and press RESET button. (Refer to 10-
1.4.) Check if the unit operates with the
remote controller.

Yes

Does the unit operate with the
remote controller?

Yes

(not clear)

Yes

Turn ON a radio to AM and press
OPERATE/STOP(ON/OFF) button on the remote controller.

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