Daikin LRYEN10A7Y1 Installation And Operation Manual page 47

Main code LRYEN10*
O
O
NOTICE
After turning ON the operation switch, wait at least
1 minute before turning OFF the power supply. Electrical
leakage detection is
compressor starts. Turning off the power supply during this
check will result in an incorrect detection.
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit and capacity up unit
4P605461-1D – 2023.08
LRNUN5* Cause
— Replaced all air conditioner indoor units after
confirmed communication
— Added any air conditioner indoor units after
confirmed communication
performed shortly after the
18 Troubleshooting
Solution
Check the communication cable and conduct
operation after all communication cables are
corrected.
If an air conditioner indoor unit is installed:
▪ If you have changed the power supply
cable or communication cable: turn the
outdoor unit operation switch OFF but
keep power supply ON.
▪ Then push BS3 on the A1P PCB for more
than 5 seconds.
Installation and operation manual
47