10
COOLING / HEATING changeover is impossible.
• If the indoor unit emits a receiving sound “1 long beep”.
It is because the indoor unit under the control of operation
changeover is set to the mode that cannot be selected.
Display Indicates only a part.
• Even if the unit is in operation, the display shows only
operational indication. Even if the indication is shown,
the indication other than operation disappears after a
while.
It is because the remote controller is set to multi-system.
Display disappears or shows all indication.
• It happens when the button of the remote controller is
pressed.
It is because the battery is dead.
No favorable cooling is achieved.
• The unit is in DRY OPERATION.
DRY OPERATION is carried out to perform operation such that
the room temperature is not decreased as much as possible.
EMERGENCY STOP
When the air conditioner stops in emergency, the run lamp on
the indoor unit starts blinking. Take the following steps yourself
to read the malfunction code that appears on the display. Con-
tact your dealer with this code. It will help pinpoint the cause of
the trouble, speeding up the repair.
Press the INSPECTION/TEST OPERATION button to
select the inspection mode “ ”.
“ ” appears on display and blinks. “UNIT No.” lights up.
Press PROGRAMMING TIMER button and change the
unit number.
Press to change the unit number until the indoor unit beeps and
perform the following operation according to the number of beeps.
Number of beeps
3 short beeps ........... Perform all steps from to .
1 short beep ............. Perform and steps.
1 long beep ..............Normal state
Press OPERATION MODE SELECTOR button.
“ ” on the left-hand of the malfunction code blinks.
Press PROGRAMMING TIMER button and change the
malfunction code.
Press until the indoor unit 2 beeps.
Press OPERATION MODE SELECTOR button.
“ ” on the right-hand of the malfunction code blinks.
Press PROGRAMMING TIMER button and change the
malfunction code.
Press until the indoor unit makes 1 long beep.
The malfunction code is fixed when the indoor unit makes 1 long
beep.
Reset of the display
Press OPERATION MODE SELECTOR button to get
the display back to the normal state.
IN CASE BESIDES EMERGENCY STOP
• The unit does not operate at all.
• Check if the receiver is exposed of sunlight or strong light.
Keep receiver away from light.
• Check if there are batteries in the remote controller. Place
the batteries.
• Check if the indoor unit number and wireless remote con-
troller number are equal.
6. HOW TO DIAGNOSE TROUBLE SPOTS
UNIT N
O
.
CODE
MODE
TIMER
RESERVE
CANCEL
DOWN
UP
/TEST
SWING
FAN
TIME
TEMP
1
24
6
35
7
ON OFF
24
6
TEST
1
DOWN
UP
2
3 6
3 6
MODE
3
DOWN
UP
4
MODE
5
DOWN
UP
6
MODE
7
Number
Number
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