Daikin FTXA20AW - Streamer Unit Abnormality; C4-00 - Heat Exchanger Temperature Sensor Problem

1 | Troubleshooting
Service manual
10
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
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 "2.8 Indoor unit main
PCB"[475].
Possible cause: Faulty indoor unit main PCB.
2 Perform a check of the indoor unit fan motor. See "2.7 Indoor unit fan
motor"[473].
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.
1.5.4 AH-00 – Streamer unit abnormality
Trigger Effect Reset
Streamer unit starts
electric discharge when
operation starts after
approximately 90 to
180seconds.
Unit will NOT stop
operating.
Manual reset via user
interface.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the streamer unit. See "2.16Streamer unit"[4137].
Possible cause: Faulty streamer unit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
1.5.5 C4-00 – Heat exchanger temperature sensor problem
Trigger Effect Reset
Refrigerant liquid
thermistor detects an
open or short circuit
during compressor
operation.
Unit will stop operating. Power reset.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.