A8-00 - Fan Motor Abnormality - Power Supply Abnormality; Capacity Setting Abnormality - Daikin Sky Air FAA71BUV1B Service Manual

3 | Troubleshooting
3.3.4 A8-00 – Fan motor abnormality - power supply abnormality
3.3.5 AJ-00 – Capacity setting abnormality
Service manual
26
Possible cause: Faulty indoor unit main PCB.
2 Perform a check of the indoor unit fan motor. See
4
motor" [ 49].
Possible cause: Faulty indoor unit fan motor.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Input voltage detected by
PCB too low or too high.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check the power supply to the indoor unit. See
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance),
▪ Phase missing,
▪ Power drop,
▪ Short circuit.
2 Perform a check of the indoor unit main PCB. See
4
PCB" [ 53].
Possible cause: Faulty indoor unit main PCB.
3 Perform a check of the indoor unit fan motor. See
4
motor" [ 49].
Possible cause: Faulty indoor unit fan motor.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Capacity class CANNOT be
read by indoor unit main
PCB.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
Effect
Units will stop operating.
Effect
Unit will stop operating.
"4.4 Indoor unit fan
Reset
Remote controller reset.
4
"5.1 Electrical circuit" [
"4.5 Indoor unit main
"4.4 Indoor unit fan
Reset
Power reset via outdoor
unit.
FAA71+100BUV1B
Sky Air indoor units
ESIE22-01 – 2022.02
83].