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Troubleshooting
Service manual
48
VAM350~200 EKVDX32~100A2VEB
VRV system air conditioner
ESIE22-07 – 2022.02
▪
If error transfers to the other indoor unit, replace the remote controller. See
Remote controller user interface.
Possible cause:
Faulty remote controller.
▪
If error is still present on the indoor unit, 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.
3.2.38 U9-01 – Other indoor unit has error
EKVDX-A units
Trigger
Effect
Reset
System mismatch,
non‑compatible indoor
units.
Unit will continue
operation.
Auto reset.
At least one other indoor
unit on same F1-F2 wiring
has an error.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Check the indoor units for error codes other than U9‑01. See
21] to solve the error code(s).
2
See "Error based troubleshooting" in the outdoor unit service manual and
proceed with the troubleshooting of this error code.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.2.39 U9-02 – Other indoor unit has error
EKVDX-A units
Trigger
Effect
Reset
At least one other indoor
unit on same F1-F2 wiring
has an error.
Unit will stop operating.
Depends on the error
type at other indoor unit.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
draft – 07/02/2022 15:12