Daikin FTXA20A Service Manual page 98

2 | Components
Problem solved?
Repair procedures
To remove the main PCB
To install the main PCB
Service manual
98
Are the test results OK?
No
After all checking procedures listed above have been performed:
Is the problem solved?
Yes
No
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 the power supply wires from the main power supply terminal X1M
and route the wires out of the ferrite core(s).
d d
d
d
d
a Power supply wires from X1M
b Wire from X1M
c Ground wiring
d Screw
e Main PCB
2 Disconnect the wire from the terminal X1M and route the wire out of the
ferrite core(s).
3 Remove the screw and remove the ground wiring from the switch box. Route
the ground wire out of the ferrite core.
4 Disconnect all other connectors from the main PCB.
5 Remove the screws from the main PCB.
6 Remove the main PCB from the unit.
7 To install the main PCB, see
1 Apply grease to the PCB contact surface of the heat sink. Distribute the grease
as evenly as possible.
Action
Replace the main PCB, see
procedures" [
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
"2.14 Plate
e
c
4
"Repair procedures" [
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
"Repair
4
98].
4
work" [ 120].
b
a
a
98].
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05