Daikin R71FUV1 Service Manual page 299

Si20-701_B
A
Is the
inverter
output voltage
generated
approximately at the
same increasing speed
for each phase after
turning ON
again? (∗1)
(U-V, V-W,
W-U)
YES
Check the power supply
voltage.
Is
instantaneous
voltage drop
generated?
NO
292
Troubleshooting by Remote Controller
NO
YES
Replace the
outdoor unit
PCB.
Correct the
power supply.
Compressor
inspection.
Inspect according
to the diagnosis
procedure for
abnormal noise,
vibration,
operating status,
etc. of the
compressor.