Daikin VRV EMERION REYQ-AATJA Service Manual page 415

SiUS372201EB
Note(s)
1. Connect and disconnect the connector once to ensure that it is securely connected.
Part 6 Service Diagnosis
A
The
microcomputer
normal monitor indication
NO
lamp (green) on the outdoor
unit main PCB (A1P)
is blinking.
YES
The
microcomputer
normal monitor indication
NO
lamp (green) on the outdoor
unit main PCB (A1P) is
blinking.
YES
Is the
connector
between the outdoor
NO
unit main PCB and the sub
PCB securely
connected?
YES
Is the
normal operation
NO
indication LED on the sub
PCB blinking?
YES
YES
The LC error recurs.
NO
The fuse of the
NO
noise filter PCB has
blown out.
YES
Troubleshooting by Error Code
This is not the LC error.
Recheck the error code.
Replace the inverter PCB.
Replace all of the inverter PCB, fan
PCBs, and noise filter PCBs.
Properly connect the connector.
Properly connect the connector on the
sub PCB.
Replace the outdoor unit main PCB
(A1P).
Continue operation.
The error could have resulted from
causes such as instantaneous
power failure.
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