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TROUBLES AND CAUSES
(CONCERNING REMOTE CONTROL)
Before you ask for servicing or repairs, check the following points.
If any of the following conditions occur, stop the air conditioner immediately, cut all power to the system,
and contact a service technician:
• The indicator lamps flash rapidly (five times per second), you disconnect the unit with the power and then
connect the unit with the power again after two or three minutes but the lamps still flash.
• Switch operations are erratic.
• The fuse is blown frequently or the circuit breaker is tripped frequently.
• Foreign matter or water has fallen inside the air conditioner.
• Any other unusual condition is observed.
CAUTION
The Transmission Indicator " " Never Comes On
The Display Never Comes On
Symptoms
Symptoms
Causes
Causes
Reason and Disposal
Reason
The remote control signal is
not transmitted even when
the ON/OFF button is pushed.
The TEMP. indicator does
not come on.
Check whether the batteries
in the remote control are
exhausted.
Check whether the MODE
indicated on the display is
"FAN ONLY".
The remote control signal is
not transmitted, because the
power supply is off.
The temperature cannot be
set during fan only operation.
The Display Goes Off
Symptoms
Causes
Reason
The indication on the display
disappears after a lapse of
time.
The ON TIMER indicators
go off after a lapse of certain
time.
Check whether the timer
operation has come to an
end when the OFF TIMER
is indicated on the display.
Check whether the timer
operation is started when
the ON TIMER is indicated
on the display.
The air conditioner operation
stops since the set time
elapsed.
When the time set to start the
air conditioner is reached, the
air conditioner will automatically
start and the appropriate
indicator will go off.
The Signal Receiving Tone does Not Sound
Symptoms
Causes
Disposal
No receiving tone sounds
from the indoor unit even
when the ON/OFF button is
pushed.
Check whether the signal
transmitter of the remote
control is properly directed
to the receiver of the indoor
unit when the ON/OFF button
is pushed.
Direct the signal transmitter of
the remote control to the
receiver of the indoor unit, and
then repeatly push the ON/
OFF button twice.
Buttons on the remote
controller don't work.
Press Reset button.
Setting Change is Impossible
Symptoms
Causes
Reason and Disposal
The fan speed can not be
changed.
Check whether the MODE
indicated on the display is
"AUTO"
Check whether the MODE
indicated on the display is
"DRY"
When the automatic mode is
selected, the air conditioner
automatically selects the fan
speed.
When dry operation is selected,
the air conditioner automatically
select the fan speed. The fan
speed can be selected during
"COOL" and "FAN ONLY", and "HEAT"
