Daikin Emura RXJ20A5V1B Service Manual page 178

4 | Components
To remove the wifi control PCB wiring harness
To install the wifi control PCB wiring harness
Service manual
178
a Wifi control PCB assembly
2 Connect the harness to the wifi control PCB assembly.
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 wiring harness from the wifi control PCB.
2 Disconnect the wiring harness connector from the indoor unit main PCB.
3 Cut all tie straps (if any) that fix the wiring harness.
4 Route the wiring harness out of the harness retainers and remove the wifi
control PCB wiring harness.
5 To install the wifi control PCB wiring harness, see
4
procedures" [ 177].
1 Connect the wiring harness connector to the indoor unit main PCB.
WARNING
When reconnecting a connector to the PCB, make sure to connect it on the correct
location and do NOT apply force, as this may damage the connector or connector
pins of the PCB.
2 Route the wiring harness through the appropriate harness retainers towards
the wifi control PCB.
3 Connect the wiring harness to the wifi control PCB.
4 Fix the wiring harness using new tie straps (if needed).
Is the problem solved?
Yes
a
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
Action
No further actions required.
4
"4.14 Plate work" [ 144].
"4.20.2 Repair
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04B – 2022.08