Repair Procedures - Daikin Emura RXJ20A5V1B Service Manual

4 | Components
Problem solved?

4.9.2 Repair procedures

To remove the indoor unit main PCB
Service manual
106
Prerequisite: Turn OFF the respective circuit breaker.
1 Check that all wires are properly connected and that all connectors are fully
plugged‑in.
2 Check that no connectors or wires are damaged.
3 Check that the wiring corresponds with the wiring diagram, see
4
diagram" [ 199].
INFORMATION
Correct the wiring as needed.
Is the problem solved?
Yes
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 all connectors from the indoor unit main PCB.
2 Carefully pull the indoor unit main PCB from the PCB supports.
Action
No further actions required.
Return to "4.9.1 Checking
4
procedures" [ 103] of the indoor unit
main PCB and continue with the next
procedure.
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
"4.14 Plate work" [
RXJ20~50A + FTXJ-A(W)(S)(B)
"7.2 Wiring
4
144].
Split Emura 3 R32
ESIE22-04B – 2022.08