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Troubleshooting
Service manual
51
VAM350~200 EKVDX32~100A2VEB
VRV system air conditioner
ESIE22-07 – 2022.02
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.2.44 UJ-35 – Abnormality at VAM unit
EKVDX-A units
Trigger
Effect
Reset
Malfunction detected at
VAM unit.
Unit will stop operating.
Power reset.
To solve the error code
1
Check the error code at the VAM-J8 indoor unit. See
21] to solve the error code.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.2.45 UJ-36 – Transmission error between VAM and EKVDX
EKVDX-A units
Trigger
Effect
Reset
Error detected in
transmission between the
units.
Unit will stop operating.
Power reset.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Check the transmission wiring between the VAM unit and the DX unit. See
Possible cause:
Faulty transmission wiring.
2
Check the field settings for VAM unit and DX unit pair application. Make sure
to perform the correct settings. See
83].
Possible cause:
Incorrect field setting.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.2.46 UJ-37 – VAM unit has A6-28 error
EKVDX-A units
Trigger
Effect
Reset
VAM unit has A6-28 error. Unit will stop operating.
Power reset.
draft – 07/02/2022 15:12