Repair Procedures - Daikin FTXP20-71L Service Manual

3 | Components

3.7.2 Repair procedures

To correct the wiring from the main power supply terminal to the main PCB
To remove the main PCB
Service manual
96
ARXP20~35N + RXP20~35N units
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the required plate work, see
2 Make sure that all wires are firmly and correctly connected, see
4
diagram" [ 159].
3 Check the continuity of all wires.
4 Replace any damaged or broken wires.
Is the problem solved?
Yes
No
ARXP-L + ARXP-M + RXP-L + RXP-M + RXP50~71N units
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Disconnect all connectors from the main PCB.
2 Disconnect the power supply wires from the main power supply terminal
X1M.
d d
d
a Power supply wiring
b Red wire
c Ground wire
d Screw
e PCB support
3 Disconnect the red wire from the terminal X1M.
4 Remove the ferrite core (for power supply wiring) from the swich box (unplug
fixation plug).
4
"3.9 Plate work" [ 111].
Action
No further actions required.
Return to "3.7.1 Checking
4
procedures" [ 84] of the PCB and
continue with the next procedure.
"3.9 Plate work" [
e
b
a
c
a e
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
"6.2 Wiring
4
111].
Split Comfora R32
ESIE18-01E – 2023.01