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Is connection of CN602 correct?
Is resistance value of TO sensor correct?
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
YES
NO
Is connection of CN603 correct?
Is resistance value of TS sensor correct?
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
YES
NO
Correct power supply line.
Does abnormal overload happen?
Is AC mains voltage correct?
208/230V ± 10V
Remove and
improve the cause of overload.
Check outdoor P.C. board.
Defect → Replace
Check and correct
wiring connection.
Is wiring connection correct?
Compressor lead
(P.C. board side, Compressor side)
Reactor cord, Power supply lead
NO
YES
YES
NO
NO
YES
Compressor lock
→ Replace
Correct power supply line.
Does PMV operate correctly?
Check outdoor P.C. board.
Defect → Replace
Is AC mains voltage correct?
208/230V ± 10V
Is there stagnation
of refrigerant?
Is compressor
under correct
conditions?
Check and
correct connection of wires.
TE, TS sensor,
Check PMV.
Defective → Replace
Is wiring connection correct?
Compressor lead
(P.C. board side, Compressor side)
Reactor cord, Power supply lead
YES
YES
YES
YES
YES
NO
NO
NONO
NO
CODE
No.
[F08]
[F12]
[H01]
[H02]
APPLICATION CONTROL KIT
LED display
D01 D02 D03 D04
(Red) (Yellow) (Yellow) (Yellow)
l
¡
ll
D01 D02 D03 D04
(Red) (Yellow) (Yellow) (Yellow)
ll
¡
l
D01 D02 D03 D04
(Red) (Yellow) (Yellow) (Yellow)
¥
l
¥
l
D01 D02 D03 D04
(Red) (Yellow) (Yellow) (Yellow)
ll
¥
l
Check / Countermeasures
(Part without special mention indicates a part of the outdoor unit.)
[Outside temp. sensor (TO) error]
[Suction temp. sensor (TS) error]
[Compressor breakdown]
[Compressor lock]
LED display legend:
l
Go off,
¡
Go on,
¥
Flash (5Hz)