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
UVW
L1
L2
L3
X10A
DM
K2
P3
N3
J1
J2
J3
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