A8-01 - Fan Motor Abnormality - Power Supply Abnormality; A9-01 - Y1E Expansion Valve Coil Abnormality - Daikin VAM350J8VEB Service Manual

3.2.13 A8-01 – Fan motor abnormality - power supply abnormality
3.2.14 A9-01 – Y1E Expansion valve coil abnormality
VAM350~2000J8VEB + EKVDX32~100A2VEB
VRV system air conditioner
ESIE22-07 – 2022.02
VAM-J8 units
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 Power supply.
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance),
▪ Phase missing,
▪ Power drop,
▪ Short circuit.
2 Perform a check of the indoor unit fan PCBs. See Indoor unit fan PCB.
Possible cause: Faulty indoor unit fan PCB.
3 Perform a check of the indoor unit fan motors. See Indoor unit fan motor.
Possible cause: Faulty indoor unit fan motor.
4 Perform a check of the indoor unit main PCB. See Indoor unit PCB.
Possible cause: Faulty indoor unit main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
EKVDX-A units
Trigger
Upon power reset, Y1E
expansion valve coil is
NOT detected.
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 Power supply.
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance),
▪ Phase missing,
▪ Power drop,
▪ Short circuit.
Effect
Units will stop operating.
Effect
Unit will stop operating.
draft – 07/02/2022 15:12
3 | Troubleshooting
Reset
Remote controller reset.
Reset
Power reset of indoor
unit.
Service manual
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