Daikin R71FUV1 Service Manual page 394

Troubleshooting by Remote Controller
displayed again.
B
D
The error is
NO
Does error
"U4" or "UF" reoccur?
YES
After turning OFF the
power supply, correctly
insert the connector of the
fan motor and then restore
the power.
YES
NO
Si20-701_B
Replace the
outdoor unit
inverter PCB.
Replace the
indoor unit PCB.
External factor
(Noise, etc.)
387