Daikin FTXA20A - Repair Procedures

2 | Components
Service manual
84
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
Blown fuse on the indoor unit power
PCB?
Action
No Return to "2.8.1Checking
procedures"[475] of the indoor unit
power PCB and continue with the next
procedure.
Problem solved?
After all checking procedures listed above have been performed:
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.
2.9.2 Repair procedures
To correct the wiring from the indoor unit power supply terminal to the indoor unit power PCB
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 Correct the wiring from the indoor unit power supply terminal to the indoor
unit power PCB, see "5.2Wiring diagram"[4171].
Is the problem solved? Action
Yes No further actions required.
No Return to "2.8.1Checking
procedures"[475] of the indoor unit
power PCB and continue with the next
procedure.
To remove the indoor unit power PCB
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 Disconnect all connectors from the indoor unit power PCB.
2 Carefully click the indoor unit power PCB out of the PCB retainers.