C6-00 - Compatibility Error Between Main Pcb And Fan Pcb; C9-02 - Suction Air Thermistor Short Circuit - Daikin Sky Air FAA71BUV1B Service Manual

3 | Troubleshooting
3.3.11 C6-00 – Compatibility error between main PCB and fan PCB
3.3.12 C9-02 – Suction air thermistor short circuit
Service manual
30
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Indoor unit main PCB
detected incompatible
type indoor unit fan PCB.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check if the correct spare part is installed for the indoor unit main PCB. See
"4.5 Indoor unit main
Possible cause: Incorrect spare part PCB.
2 Perform power reset. If error is NOT resolved:
▪ Perform a check of the indoor unit main PCB. See
4
PCB" [ 53].
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.
Trigger
Indoor unit suction air
thermistor detected
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 unit suction air thermistor. See
"4.9 Thermistors" [
Possible cause: Faulty indoor unit suction air thermistor.
2 Perform a check of the indoor unit main PCB. See
4
PCB" [ 53].
Possible cause: Faulty indoor unit main PCB.
Effect
Unit will stop operating.
4
PCB" [ 53].
Effect
The unit stops and will
resume operation in
thermostat OFF.
4
77].
Reset
Reset via remote
controller.
"4.5 Indoor unit main
Reset
Auto reset.
"4.5 Indoor unit main
FAA71+100BUV1B
Sky Air indoor units
ESIE22-01 – 2022.02