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•If the unit cannot be operated properly after the test run, refer to the following table to find out the cause.
Symptom Cause
Wired remote controller LED 1, 2 (PCB in outdoor unit)
On the IR wireless remote controller with condition above,following phenomena take place.
• No signals from the remote controller can be received.
• OPE lamp is blinking.
• The buzzer makes a short ping sound.
PLEASEWAIT
PLEASEWAIT Error code
Display messages do not
appear even when operation
switch is turned ON (operation
lamp does not light up).
For about 2
minutes after
power-on
Subsequent to
about 2 minutes
after power-on
After LED 1, 2 are lighted, LED 2is
turned off, then only LED 1 is
Only LED 1 is lighted.
LED 1, 2 blink.
Only LED 1 is lighted.
LED 1 blinks twice,
LED 2 blinks once.
•For about 2 minutes following power-on,op-
eration of the remote controller is not possible
due to system start-up.(Correct operation)
•Connector for the outdoor unit’s protection
device is not connected.
•Reverse or open phase wiring for the outdoor
unit’s power terminal block (L1, L2, GR)
•Incorrect wiring between indoor and outdoor
units (incorrectpolarity of S1, S2, S3)
•Remote controller wire short
Note:
Operation is not possiblefor about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED1, 2, 3) provided on the indoor controller, refer to the following table.
LED1 (powerfor microprocessor)
always lit.
LED2 (powerfor wired remote controller) Indicates whether power is supplied to the wired remote controller.
This LED lights only in the case of the indoor unit which is connected to the
outdoor unit refrigerant addresses“0”.
LED3 (communication between indoor and
outdoor units)
Indicates state of communication between the indoor and outdoor units.
Make sure that this LED is alwaysblinking.
lighted.
(Correct operation)
• On IR wireless remote controller
The continuousbuzzer sounds from receiving section of indoor unit.
Blink of operation lamp
• On wired remote controller
Check code displayed in the LCD. (Refer to the previous page, check code.)
Indicates whether control power is supplied. Make sure that this LED is