A1P Capacity Setting Error; A1P Setting Error For Y1E Expansion Valve - Daikin VAM350J8VEB Service Manual

3 | Troubleshooting
3.2.17 AJ-01 – A1P Capacity setting error
3.2.18 AJ-02 – A1P Setting error for Y1E expansion valve
Service manual
34
draft – 07/02/2022 15:12
EKVDX-A and VAM-J8 units
INFORMATION
In case of EKVDX-A + VAM-J8 combination: check via the remote controller which
indoor unit generates this error. Perform procedures described below for the
applicable indoor unit.
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.
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 power reset. If the error disappears and is raised again after a
while, check for the presence of an external source causing electrical noise.
See External factors.
Possible cause: External source may cause interference.
3 Check if the correct spare part is installed for the indoor unit main PCB. See
Indoor unit main PCB. Check that the correct capacity setting adapter is
connected to X23A of the PCB.
Possible cause: Incorrect spare part PCB or incorrect capacity setting adapter.
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
Y1E expansion valve type
CANNOT be read by PCB
A1P.
Effect
Unit will stop operating.
Effect
Unit will stop operating.
Reset
Power reset of indoor
unit.
Reset
Power reset of indoor
unit.
VAM350~2000J8VEB + EKVDX32~100A2VEB
VRV system air conditioner
ESIE22-07 – 2022.02