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Troubleshooting by Remote Controller
Si20-701_B
489
Electronic circuit
According to the checking aforementioned, it is probed
that the error results from the defective inverter. The
following section describes supposed causes of the
defective inverter.
1
Defective compressor (ground leakage)
1
Defective fan motor (ground leakage)
1
Entry of conductive foreign particles
1
Abnormal voltage (e.g. overvoltage, surge (thunder),
or unbalanced voltage)
In order to replace the defective inverter, be sure to
check for the points aforementioned.
P1
P2
IGBT
X11A
U
V
W
L1
L2
L3
X10A
DM
K2
P3
N3
J1
J2
J3