Service manual

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(V2813)
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
±10V) Must be measured
when frequency is
stable.
Compressor overload
Inspection of the compressor and
refrigerant system is required.
Compressor inspection
Inspect according to the diagnosis
procedure for odd noises, vibration
and operating status of the
compressor.
NO
Replace the inverter PC board.
YES
NO
Reset and restart.
NO
The
secondary
current of the inverter
is higher than 15A for each
phase.
Replace the compressor.
NO
YES
Compressor
inspection The
compressor's coil is
disconnected.
YES
YES
Disconnect the the connection
between the compressor and
inverter. Make the power
transistor check mode setting
ON by service mode.
After turning on
again, "L8" blinks
again.