Daikin FTXA20A - Repair Procedures

3 | Third party components
Service manual
157
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
Does the unit receive power? Action
Yes Correct the wiring from the main power
supply terminal to the indoor unit
power supply terminal, see
"3.1.2Repair procedures"[4157].
No Adjust the power supply to the unit, see
"3.1.2Repair procedures"[4157].
To check the wiring between the outdoor unit and the indoor unit
1 Check that all wires are properly connected and that all connectors are fully
plugged‑in.
2 Check that no connectors or wires are damaged.
3 Check that the wiring corresponds with the wiring diagram, see "5.2 Wiring
diagram"[4171].
INFORMATION
Correct the wiring as needed.
Is the problem solved? Action
Yes No further actions required.
No Return to the troubleshooting of the
specific error and continue with the
next procedure.
3.1.2 Repair procedures
To adjust the power supply
1 Make sure that the power source is in line with the requirements described in
the databook.
2 Adjust the power supply within 50Hz ± 3%.
Is the problem solved? Action
Yes No further actions required.
No Return to the troubleshooting of the
specific error and continue with the
next procedure.
To correct the wiring from the main power supply terminal to the indoor unit power supply
terminal
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.14Plate work"[4120].
1 Make sure that all wires are firmly and correctly connected, see "5.2Wiring
diagram"[4171].
2 Check the continuity of all wires.
3 Replace any damaged or broken wires.