Troubleshooting by Indication on the Remote Controller
211
Troubleshooting
Compressor inspection
YES
NO
Replace the
compressor.
The
compressor's coil
is disconnected or the
insulation is
defective.
YES
NO
Replace the
inverter unit.
Inverter
output
voltage check
Inverter output
voltage is not
balanced. (Normal if
within ±10V for Y1, YL
power supply and ±5V
for TL power supply)
Must be measured
when frequency
is stable.
Disconnect the connection
between the compressor
and inverter. Make the
power transistor check
mode setting ON by
service mode.
A
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.