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[P07]
[Heat sink overheat trouble]
[P15]
[Gas leak detection]
Check
code
Outdoor LED
indication
Check and troubleshooting
(Item without special mention indicates part of outdoor unit.)
NO
Apply radiation grease
to objective, retightening
of screw
YES
Remove blocking matter,
Short-circuit improvement
NO
YES
Are radiation grease properly applied?
Is the screw stop of the motor drive
element IC200 on the outdoor P.C. board,
the sub heat sink, and the diode bridge
tightened correctly?
Does something block the
ventilation around the heatsink?
Does something block air flow
from the fan?
(Short-circuit etc.)
Replace outdoor P.C. board.
* When replacing outdoor P.C. board, replace
the fuse.
Is there gas leak?
Is there refrigerant shortage?
Check temp. sensor.
TD sensor GP56: CN601, GP80: CN603
TS sensor GP56: CN603, GP80: CN600
NO
Open service valve fully.
YES
Correct and replace piping.
YES
Malfunction part repair.
Recharge refrigerant.
Replace the PMV.
NO
Abnormality
Correct connector.
Sensor trouble → Replace
NO
YES
Is PMV normal?
YES
Replace outdoor P.C. board.
OK
Is service valve fully opened?
NO
Is there crushed pipe?