Error Codes: Overview - Daikin CO2 Conveni-pack LRYEN10A7Y1 Installer And User Reference Manual

24 | Troubleshooting

24.3.1 Error codes: Overview

In case other error codes appear, contact your dealer.
Main code LRYEN10* LRNUN5* Cause
O
O
O
O
O
O
Installer and user reference guide
124
O Electrical leakage
— Stop valves are closed.
O Malfunction of fan motor
For LRYEN10*:
▪ (M1F) - A9P (X1A)
▪ (M2F) - A10P (X1A)
▪ (M3F) - A11P (X1A)
For LRNUN5*:
▪ (M1F) - A4P (X1A)
O Malfunction of electronic expansion
valve coil
For LRYEN10*:
▪ (Y7E) - A12P (X8A)
▪ (Y4E) - A12P (X9A)
▪ (Y14E) - A12P (X10A)
▪ (Y3E) - A1P (X21A)
▪ (Y8E) - A1P (X22A)
▪ (Y2E) - A1P (X23A)
▪ (Y1E) - A1P (X25A)
▪ (Y13E) - A1P (X26A)
▪ (Y5E) - A2P (X21A)
▪ (Y16E) - A2P (X22A)
▪ (Y17E) - A2P (X23A)
For LRNUN5*:
▪ (Y3E) - A1P (X21A)
▪ (Y1E) - A1P (X22A)
▪ (Y4E) - A1P (X23A)
▪ (Y2E) - A1P (X24A)
— Wrong selection of cooling load
(including the expansion valves)
O Malfunction of ambient
temperature sensor
For LRYEN10* and LRNUN5*:
▪ (R1T) - A1P (X18A)
Solution
Correct the field wiring and connect
ground wiring.
Open the stop valve on both the gas
and liquid side.
Check connection on PCB or
actuator.
Check connection on PCB or
actuator.
Reselect the cooling load, including
the expansion valve.
Check connection on PCB or
actuator.
LRYEN10A7Y1+LRNUN5A7Y1
CO₂ Conveni-Pack outdoor unit
4P605460-1 – 2020.08