Indoor Air Thermistor Malfunction; Indoor Air Thermistor Out Of Range - Daikin VAM350J8VEB Service Manual

3.2.49 64-01 – Indoor air thermistor malfunction
3.2.50 64-02 – Indoor air thermistor out of range
VAM350~2000J8VEB + EKVDX32~100A2VEB
VRV system air conditioner
ESIE22-07 – 2022.02
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
Indoor air thermistor
open 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 indoor air thermistor. See Thermistors.
Possible cause: Faulty indoor air 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
Indoor air 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 air thermistor. See Thermistors.
Possible cause: Faulty indoor air 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.
Effect
Unit will continue
operating.
Effect
Unit will continue
operating.
draft – 07/02/2022 15:12
3 | Troubleshooting
Reset
Auto reset.
Reset
Auto reset.
Service manual
53