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Correct wires
Check outdoor P.C. board.
Defect → Replace
Are connections of wires correct?
Between power cable and terminal block
Between outdoor P.C. board and terminal block
YES
NO
Is compressor under correct conditions?
Is AC mains voltage correct?
208/230V ± 10V
Correct
power supply line.
Compressor trouble
Rare short check
Defective → Replace
Check outdoor P.C. board.
Defect → Replace
YES
YES
NO
NO
Is PMV under correct conditions?
Is connection of CN601 correct?
Is resistance value of TD sensor correct?
Is there gas leak?
Is there refrigerant shortage?
Repair defective position.
Recharge refrigerant.
Repair defective position.
Replace defective part.
Does an abnormal overload happen?
Remove and improve
the cause of overload.
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
YES
NO
YES
NO
YES
NO
YES
NO
Is AC mains voltage correct?
208/230V ± 10V
Confirm power supply
construction, etc.
Check outdoor P.C. board.
Defect → Replace
YES
NO
CODE
No.
[H03]
[L29]
[P03]
[P04]
APPLICATION CONTROL KIT
LED display
D01 D02 D03 D04
(Red) (Yellow) (Yellow) (Yellow)
¥¥
ll
D01 D02 D03 D04
(Red) (Yellow) (Yellow) (Yellow)
¡
ll
¡
or
l
¥¥
l
D01 D02 D03 D04
(Red) (Yellow) (Yellow) (Yellow)
l
¡¡
l
D01 D02 D03 D04
(Red) (Yellow) (Yellow) (Yellow)
¡
ll
¡
Check / Countermeasures
(Part without special mention indicates a part of the outdoor unit.)
[Power supply error, Current detection circuit error]
[Power supply error, Current detection circuit error]
[Discharge temp. error]
[Power supply error (Voltage error)]
LED display legend:
l
Go off,
¡
Go on,
¥
Flash (5Hz)