Daikin VRV S RXQ4/5ARV1 - Page 272

Troubleshooting by Error Code SiAF332111E
266 Part 6 Service Diagnosis
Note(s)
Reference
Troubleshooting RXQ4/5AR, RXMQ6/10/12AR
RXMQ8AR
1. RXQ4/5AR, RXMQ6AR: outdoor unit main PCB (A1P)
RXMQ10/12AR: inverter PCB (A3P)
CHECK 4 Refer to page 340.
Replace the PCB.*1
YES
NO
It is supposed that the error results
from external causes other than
failures (e.g. exogenous noises or
thunder).
Turn off the power. Then,
turn on the power again.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Caution
Does the power
supply normally come
back on?
Is the
insulation to
ground resistance of the
compressor 100 k or
more?
The error could have resulted from
external factors other than failures
(e.g. external noise or thunder).
YES
Replace both the compressor (M1C)
and the inverter PCB (A3P).
Replace the inverter PCB (A3P).
NO
NO
YES
Replace both the inverter PCB (A3P)
and the fan PCB (A4P).
Replace the inverter PCB (A3P).
NO
YES
Turn off the power. Then,
turn on the power again.
NO
YES
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Return to normal?
CHECK 4
Is the power
transistor normal?
CHECK 4
Is the power
transistor of the fan
driver normal?