Discharge Thermistor Abnormality; Co2 Sensor Alarm - Daikin VAM350J8VEB Service Manual

3.2.28 CA-00 – Discharge thermistor abnormality
3.2.29 CH-00 – CO2 sensor alarm
VAM350~2000J8VEB + 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.
EKVDX-A units
Trigger
Indoor unit discharge
thermistor read‑out is out
of range.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the indoor unit discharge thermistor. See Thermistors.
Possible cause: Faulty indoor unit discharge thermistor.
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.
VAM-J8 units
Trigger
Optional CO sensor is
2
disconnected or
short‑circuit.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the optional CO
Possible cause: Faulty CO
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.
Effect
Unit will stop operating.
Effect
Unit will continue
operating. Fan speed is
NO more adjusted
according to CO level.
2
sensor. See CO2 sensor.
2
sensor.
2
draft – 07/02/2022 15:12
3 | Troubleshooting
Reset
Auto reset.
Reset
Auto reset.
Service manual
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