2 | Components
Service manual
74
(C)(F)TXA15~50A(W)(S)(T) + (C)(F)TXA15~50B(B)(S)(T) + RXA42+50A +
RXA20~35A + RXA42+50B
Split Stylish R32
ESIE18-03C – 2020.02
a Fuse
Blown fuse on the indoor unit PCB? Action
Yes Replace the blown fuse, see
"2.8.2Repair procedures"[474].
No Return to "2.8.1Checking
procedures"[471] of the indoor unit
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.
2.8.2 Repair procedures
To correct the wiring from the indoor unit power supply terminal to the indoor unit PCB
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.13Plate work"[499].
1 Correct the wiring from the indoor unit power supply terminal to the PCB, see
"5.2Wiring diagram"[4145].
Is the problem solved? Action
Yes No further actions required.
No Return to "2.8.1Checking
procedures"[471] of the indoor unit
PCB and continue with the next
procedure.
To remove the indoor unit PCB
INFORMATION
As the indoor unit PCB exists of two parts (power PCB and control PCB) which can be
replaced separately, only replace the appropriate part of the indoor unit PCB.