Service Manual

– 92 –
Compressor lock
→ Replace
Correct power supply line.
Correct power supply line.
Does abnormal overload happen?
Does PMV operate correctly?
Check outdoor P.C. board.
Defect → Replace
Is AC mains voltage correct?
198 to 264V
Is AC mains voltage correct?
198 to 264V
Is there stagnation
of refrigerant?
Is compressor
under correct
conditions?
Check and
correct connection of wires.
Remove and
improve the cause of overload.
Check outdoor P.C. board.
Defect → Replace
Check and correct
wiring connection.
Is connection of CN603 correct?
Is resistance value of TS sensor correct?
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
Is connection of CN602 correct?
Is resistance value of TO sensor correct?
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
TE, TS sensor,
Check PMV.
Defective → Replace
Is wiring connection correct?
Compressor lead
(P.C. board side, Compressor side)
Reactor cord, Power supply lead
Is wiring connection correct?
Compressor lead
(P.C. board side, Compressor side)
Reactor cord, Power supply lead
YES
NO
YES
NO
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
YES
NO
NO
NONO
NO
Check
code
[F08]
APPLICATION CONTROL KIT
LED display
D01 D02 D03 D04
(Red) (Yellow) (Yellow) (Yellow)
l
¡
ll
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]
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
[F12]
[H01]
[H02]
LED display legend:
l
Go off,
¡
Go on,
¥
Flash (5Hz)
<In case of SP40 to 56>