Si20-701_B Troubleshooting by Remote Controller
308
Note:
∗1. When operating compressor with compressor output
line disconnected, the compressor stops due to error
after elapsed time of 5 seconds. Therefore, check the
voltage increase for 5 seconds.
Refer to P.464.
YES
YES
CHECK 4
Continuity check
in the power transistor
(IGBT). Is the
continuity
normal?
NO
Compressor
inspection.
Inspect
according to the
diagnosis
procedure for
abnormal noises,
vibration,
operating status,
etc. of the
compressor.
Replace the
outdoor unit
PCB.
Is the
inverter
output voltage
generated
approximately at the
same increasing speed
on each phase after
turning ON
again? (∗1)
(U-V, V-
W, W-
U)
NO
Replace the
outdoor unit
PCB.
A
CHECK 4
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