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Is there no loosening of
screws of motor drive element of
outdoor P.C. board Q200, Q300, Q400
and rectifier DB01, DB02, DB03?
Did not forget to apply
radiation grease to rear side of
Q200, DB01, DB02 or DB03?
Check outdoor P.C. board.
Defect → Replace
Remove blocking matter.
Correct short-circuit.
Open valve fully.
Correct and replace piping.
Correct connector.
Sensor error → Replace
Check outdoor P.C. board.
Defect → Replace
Correct defective position.
Replace defective part.
Repair defective position.
Recharge refrigerant.
Is there no crushed pipe?
Is valve fully opened?
Is PMV normal?
Is there no gas leak?
Is refrigerant charge amount adequate?
Check temp. sensor.
TD sensor CN603
TS sensor CN600
Is not the ventilation flue
of the heat sink blocked?
Is not the fan blocked?
(Short-circuit, etc.)
Apply radiation grease to objective part.
Retightening of screws.
(Be sure not to forget to attach insulating sheet
between heat sink and Q300, Q400.)
Error
OK
YES
YES
YES
YES
NO
NO
NO
NO
YES
YES
NO
NO
CODE
No.
[P07]
[P15]
Outdoor
LED display
<Display 1> <Display 2>
¡ ¥
¡ ¥
¡ ¥
ll
¡
l
¡¡
<Display 1> <Display 2>
¡ ¥
¡ ¥
¡ ¥
l
¥
¡
l
¡¡
Check and troubleshooting
(Item without special mention Indicates part of outdoor unit.)
[Heat sink overheat error]
[Gas leak detection]