Daikin VRV S RXQ4/5ARV1 Service Manual page 290

Troubleshooting by Error Code
Note(s)
1.
2.
3.
284
A
The service
monitor (green) on the
NO
outdoor unit main
PCB (A1P) is
blinking.
YES
The service
NO
monitor (green) on the
inverter PCB (A3P) is
blinking.
YES
Is the
connector between
NO
the inverter PCB and the fan
PCB securely connected?
YES
The service
NO
monitor (green) on the fan
PCB ( 3) is blinking.
YES
YES
The LC error recurs.
NO
Connect and disconnect the connector once to ensure that it is securely connected.
RXMQ8AR: M1F
RXMQ10/12AR: M1F, M2F
RXMQ8AR: A4P
RXMQ10/12AR: A4P, A5P
The fuse of the
NO
noise filter PCB has blown
out.
YES
SiAF332111E
This is not the LC error.
Recheck the error code.
Replace the inverter PCB (A3P).
Replace all of the inverter PCB (A3P),
the fan PCB ( 3) and the noise filter
PCB (A2P).
Properly connect the connector.
Replace the fan PCB ( 3).
Replace the outdoor unit main PCB
(A1P).
Continue operation.
The error could have resulted from
causes such as instantaneous
power failure.
Part 6 Service Diagnosis