A6-00 - Indoor Unit Fan Motor Abnormality; C4-00 - Heat Exchanger Temperature Sensor Problem - Daikin Split Sensira R32 Service Manual

2 | Troubleshooting
2.5.3 A6-00 – Indoor unit fan motor abnormality
2.5.4 C4-00 – Heat exchanger temperature sensor problem
Service manual
18
Trigger
The rotation speed of the
fan motor is NOT
detected while the output
voltage to the fan is at its
maximum.
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 main PCB. See
4
PCB" [ 84].
Possible cause: Faulty indoor unit main PCB.
2 Perform a check of the indoor unit fan motor. See
4
motor" [ 81].
Possible cause: Faulty indoor unit fan motor.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Refrigerant liquid
thermistor detects an
open or short circuit
during compressor
operation.
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 heat exchanger thermistor. See
4
"3.13 Thermistors" [
Possible cause: Faulty indoor unit heat exchanger thermistor.
2 Perform a check of the indoor unit main PCB. See
4
PCB" [ 84].
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 stop operating.
140].
(A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D +
(A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C +
Reset
Power reset via the
outdoor unit.
"3.7 Indoor unit main
"3.6 Indoor unit fan
Reset
Power reset.
"3.7 Indoor unit main
(A)RXF20~42D + (A)RXF20~42E
Split Sensira R32
ESIE18-12G – 2023.01