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Troubleshooting
Service manual
23
VAM350~200 EKVDX32~100A2VEB
VRV system air conditioner
ESIE22-07 – 2022.02
Possible cause:
External (foreign) vapor substance reacted with R32 leak
detection sensor.
6
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.
3.2.3 A1-00 – Main PCB abnormality
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
Effect
Reset
Data read error from
EEPROM.
Unit will stop operating.
Power reset of indoor
unit.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
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.
2
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.
3.2.4 A3-00 – Drain water level abnormality
EKVDX-A units
Trigger
Effect
Reset
Float switch is open circuit
during normal operation.
Unit willl stop operating.
Remote controller reset.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
draft – 07/02/2022 15:12
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