Daikin Sensira Series - Page 81

2 | Components
Service manual
81
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Split Sensira R32
ESIE18-12E – 2021.02
Are the test results OK? Action
No Replace the main PCB, see "Repair
procedures"[481].
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.
Repair procedures
To remove the main PCB
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see "2.10Plate work"[4101].
1 Disconnect all connectors from the main PCB.
2 Disconnect the power supply wires from the main power supply terminal X1M
and route the wires out of the ferrite core(s).
d
d
e
ed a
a
b
c
a Power supply wiring
b Red wire
c Ground wire
d Screw
e PCB support
3 Disconnect the red wire from the terminal X1M and route the wire out of the
ferrite core(s).
4 Disconnect the Faston connectors from the reactor.
5 Remove the screw and remove the ground wiring from the switch box. Route
the ground wires out of the ferrite core(s).
6 Remove the screws from the main PCB.
7 Carefully pull the main PCB from the PCB supports
8 Remove the main PCB from the unit.
9 To install the main PCB, see "Repair procedures"[481].