Daikin VRVII Manual page 334

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