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Remove and improve
the cause of overload.
Check wire connection
and correct it.
Correct power supply line.
Check outdoor P.C. board.
Defect → Replace
Check wire connection
and correct it.
Correct power supply line.
Is compressor under correct conditions?
Is there refrigerant stagnation?
Does PMV correctly operate?
Does an abnormal overload happen?
Is AC mains voltage correct?
AC198 to 264V
Is AC mains voltage correct?
AC198 to 264V
Is wire connection correct?
Compressor lead
(Board side, Compressor side),
Reactor lead, Power supply lead
Is wire connection correct?
Compressor lead
(Board side, Compressor side),
Reactor lead, Power supply lead
Compressor lock → Replace
Check outdoor P.C. board.
Defect → Replace
Check TE, TS sensors and PMV.
Defect → Replace
Check outdoor P.C. board.
Defect → Replace
Check outdoor P.C. board.
Defect → Replace
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
Check
code
[H01]
[H02]
[H03]
Outdoor
LED display
<Display 1> <Display 2>
l
¥
ll
¡
l
ll
¡
l
¡¡
<Display 1> <Display 2>
ll
l
¥
¡
l
ll
¡
l
¡¡
<Display 1> <Display 2>
l
¥
l
¥
¡
l
ll
¡
l
¡¡
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[Compressor break down]
[Compressor lock]
[Current detection circuit error]
<In case of SP80>