Daikin FTXA20A - H6-00 - Outdoor Unit: Malfunction of Position Detection Sensor

1 | Troubleshooting
Service manual
22
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
1.5.21 H6-00 – Outdoor unit: Malfunction of position detection sensor
Trigger Effect Reset
Compressor fails to start
within 15seconds after
the compressor run
command signal is sent.
Unit will NOT stop
operating.
Automatic reset after a
continuous operation of
10minutes.
If the error re-occurs
within 8minutes: unit will
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 compressor. See "2.2Compressor"[446].
Possible cause: Faulty compressor or miswiring of the compressor power
supply cable.
2 Perform a check of the main PCB. See "2.12Main PCB"[491].
Possible cause: Faulty main PCB.
3 Check that all stop valves of the refrigerant circuit are open. See
"3.2Refrigerant circuit"[4158].
Possible cause: Closed stop valve in the refrigerant circuit.
4 Check if the refrigerant circuit is clogged. See "3.2Refrigerant circuit"[4158].
Possible cause: Clogged refrigerant circuit.
5 Check if the refrigerant circuit is correctly charged. See "3.2 Refrigerant
circuit"[4158].
Possible cause: Refrigerant overcharge or shortage.
6 Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See "3.2Refrigerant circuit"[4158].
Possible cause: Non‑condensables and/or humidity in the refrigerant circuit.
7 Check if the power supply is conform with the regulations. See "3.1Electrical
circuit"[4156].
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance >4%),
▪ Power drop,
▪ Short circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.