Daikin VRV S RXQ4/5ARV1 - Page 310

Troubleshooting by Error Code SiAF332111E
304 Part 6 Service Diagnosis
Reference
CHECK 4 Refer to page 340.
The
system enters
standby mode before the
outdoor unit fan starts
rotating.
The system
enters standby
mode before completing
the startup operation of the
compressor.
The error U2 recurs.
NO
YES
NO
YES
NO
YES
Replace the inverter PCB
(A3P).
Check for wirings.
Turn ON the power supply,
and then press the ON button.
Replace the inverter PCB
(A3P).
If the inverter PCB gets
severely damaged, check
for the compressor.
Continue operation.
The error could have
resulted from causes such
as instantaneous power
failure.
A