Troubleshooting by Indication on the Remote Controller
329
Troubleshooting
NO
NO
YES
NO
Is a
correct spare PCB
procured?
Replace the
outdoor unit main
PCB.
Replace it with
the correct spare
PCB.
Check
if the outdoor
unit PCB is replaced
with PCB for spare
parts.
YES
Diagnosis Flow 3
Check 3
Check 4
YES
NO
Check if
the spare PCB
setting is correct.
Correct the
setting to reset
the power.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Check if the
unit is not
connected to outdoor
units of different
models.
Check the model
of the outdoor
unit.
YES
Replace the
spare PCB.
