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Check code
[F12]
[H01]
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[Suction temp. sensor (TS) error]
[Compressor break down]
YES
NO
Is CN603 connection normal?
Is resistance value of TS sensor normal?
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
[Compressor lock]
Is it not abnormal overload?
Is power supply voltage normal?
AC198 to 264V
Correct and clear the cause.
Check wire connection
and correct it.
Correct power supply line.
YES
NO
NO
YES
YES
NO
Check outdoor P.C. board.
Defect → Replace
Is wire connection normal?
Compressor lead (Board side, Compressor side),
Reactor lead, Power supply lead
[Current detection circuit error]
Is power supply voltage normal?
AC198 to 264V
Is compressor normal?
Is there no refrigerant stagnation?
Does PMV normally operate?
Check wire connection
and correct it.
Correct power supply line.
Compressor lock → Replace
Check outdoor P.C. board.
Defect → Replace
Check TE, TS sensors and PMV.
Defect → Replace
YES
NO
NO
NO
NO
YES
YES
YES
YES
NO
Check outdoor P.C. board.
Defect → Replace
Is wire connection normal?
Compressor lead (Board side, Compressor side),
Reactor lead, Power supply lead
Check outdoor P.C. board.
Defect → Replace
[H02]
[H03]
<In case of SP40, SP45>