Specifications

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140 Troubleshooting
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Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Inverter
output
voltage check
Inverter output voltage
is not balanced.
(Normal if within ±5V) Must
be measured when
frequency
is stable.
Unsatisfactory pressure
equalization
Check refrigerant system.
Compressor inspection
Inspect according to the diagnosis
procedure for odd noises, vibration
and operating status of the
compressor.
YES
Replace the inverter PC board
NO
NO
Reset and restart.
NO
The difference
between high and low
pressure when starting
is above
29 psi.
YES
YES
Disconnect the connection
between the compressor and
inverter. Make the power
transistor check mode ON by
service mode.
After turning
on again, "L9" blinks
again.
(V2814)