Daikin R48NUY2S - Page 394

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