Communication Abnormality With Central Controller; Capacity Mismatch Between Vam And Dx Module - Daikin VAM350J8VEB Service Manual

3 | Troubleshooting
3.2.42 UE-00 – Communication abnormality with central controller
3.2.43 UJ-34 – Capacity mismatch between VAM and DX module
Service manual
50
draft – 07/02/2022 15:12
EKVDX-A and VAM-J8 units
Trigger
Transmission abnormality
with central controller.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
If all indoor units display error UE-00
1 See "Error based troubleshooting" in the outdoor unit service manual and
proceed with the troubleshooting of this error code.
If ONLY 1 indoor unit displays error UE-00
1 Check if the indoor unit has an assigned group address. Set a group address as
needed. See installation manual of the remote controller for procedure to set
group address.
Possible cause: No group address assigned to indoor unit.
2 Perform a power reset on the central controller and check if error is resolved.
3 Using the service monitoring tools, check the communication registers.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
EKVDX-A units
Trigger
Incompatible VAM and
EKVDX capacities are
installed together.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check for improper combination of units. See the combination table in the
Databook for more information. Change the installation with ONLY compatible
type units.
2 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.
Effect
Unit will stop operating.
Effect
Unit will NOT operate.
Reset
Auto reset.
Reset
Power reset.
VAM350~2000J8VEB + EKVDX32~100A2VEB
VRV system air conditioner
ESIE22-07 – 2022.02