Daikin VRV Aurora RXLQ-TATJU Series, Service Manual

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SiUS341802EC Troubleshooting by Error Code
Part 6 Service Diagnosis 326
Note(s)

1. Connect and disconnect the connector once to ensure that it is securely connected.
Replace all of the inverter PCB ( 2),
fan PCBs ( 3), and noise filter PCBs
( 4).
YES
This is not the LC error.
Recheck the error code.
NO
YES
The
microcomputer
normal monitor indication
lamp (green) on the outdoor
unit main PCB (A1P)
is blinking.
Replace the inverter PCB ( 2).
NO NO
YES
The
microcomputer
normal monitor indication
lamp (green) on the outdoor
unit main PCB (A1P) is
blinking.
Properly connect the connector.
NO
YES
Is the
connector
between the outdoor
unit main PCB and the sub
PCB securely
connected?
Properly connect the connector X9A
(X10A) on the sub PCB option.
NO
Is the
normal operation
indication LED on the sub
PCB blinking?
YES
NO
Replace the outdoor unit main PCB
(A1P).
YES
The fuse of the
noise filter PCB has
blown out.
Continue operation.
The error could have resulted from
causes such as instantaneous
power failure.
The LC error recurs.
A
Model Inverter PCB (  2) Fan PCB (  3) Noise filter PCB (  4)
RXLQ-TATJU
RXLQ-TATJA
RXLQ-TBTJA
RXLQ-TAYDU
RXLQ-TAYDA
RXLQ-TBYDA
A3P
M1F: A4P
M2F: A5P
A2P
RXLQ-TAYCU
RXLQ-TAYCA
RXLQ-TBYCA
RXYQ-TAYCU
RXYQ-TAYCA
A4P
M1F: A6P
M2F: A5P
A2P, A3P