Daikin VRV S RXQ4/5ARV1 - Momentary Power Failure During Test Operation

SiAF332111E Troubleshooting by Error Code
Part 6 Service Diagnosis 267
5.42 Momentary Power Failure during Test Operation
Applicable
Models
RXMQ8AR
Error Code L2
Method of Error
Detection
Momentary power failure is detected by the PCB.
Error Decision
Conditions
Judgment is made by AC power frequency detection circuit on the outdoor unit main PCB
Supposed
Causes
 Defective wiring
 Defective outdoor unit main PCB
Troubleshooting
Error
recurs after
turning OFF the power
and ON again.
Any
disconnection
of connectors, loose
contact or wiring disconnection
in the transmission wirings to
the outdoor unit main
PCB?
NO
YES
YES
NO
Temporary problem
Correct any fault.
Replace the outdoor unit
main PCB (A1P).
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.