24
Errors detected by indoor unit
• On wired remote controller
1
Check code displayed in the LCD.
Symptom
Cause
Wired remote controller
PLEASE WAIT
PLEASE WAIT
→
Error code
Display messages do not
appear even when operation
switch is turned ON (operation
lamp does not light up).
For about 2
minutes follow-
ing power-on
After about 2
minutes has
expired follow-
ing power-on
• 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
• Incorrect wiring between indoor and outdoor
units
• Remote controller wire short
Note:
Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)
For description of each LED (LED1, 2) provided on the indoor controller, refer to the following table.
LED1 (power for microcomputer)
Indicates whether control power is supplied. Make sure that this LED is
always lit.
LED2 (power for wired remote controller)
Indicates whether power is supplied to the wired remote controller.
This LED lights only in the case of the main indoor unit.
• If the unit cannot be operated properly after test run has been performed, refer to the following table to remove the cause.
1
Check code
Symptom
Remark
Wired remote controller
P1
Intake sensor error
P2
Pipe (TH2) sensor error
P4
Drain sensor error
P5
PA
Drain pump error
Forced compressor stop
P6
Freezing/ Overheating safeguard operation
P8
Pipe temperature error / Outdoor unit error
E4, E5
Remote controller signal receiving error
–
–
–
–
Fb
Indoor unit control system error (memory error, etc.)
E0, E3
E1, E2
Remote controller control board error
Remote controller transmission error
OC394--1.qxp 06.5.23 5:44 PM Page 24
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