Daikin Emura RXJ20A5V1B Service Manual page 128

4 | Components
To check the wiring of the main PCB
To check the fuse of the main PCB
Service manual
128
Prerequisite: First perform all earlier main PCB checks, see
4
procedures" [ 126].
Prerequisite: Stop the unit operation via the user interface.
1 Turn OFF the respective circuit breaker.
2 Check that all wires are properly connected and that all connectors are fully
plugged‑in.
3 Check that no connectors or wires are damaged.
4 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
Prerequisite: First perform all earlier main PCB checks, see
4
procedures" [ 126].
1 Measure the continuity of the fuse. If no continuity is measured, the fuse has
blown.
c a
a Fuse F1U
b Fuse F2U
c Fuse F3U
Blown fuse on the main PCB?
Yes
No
Action
No further actions required.
Return to "Checking
4
procedures" [ 126] of the PCB and
continue with the next procedure.
b
Action
Replace the main PCB, see
4
procedures" [ 131].
Return to "Checking
4
procedures" [ 126] of the main PCB
and continue with the next procedure.
RXJ20~50A + FTXJ-A(W)(S)(B)
"Checking
"7.2 Wiring
"Checking
"Repair
Split Emura 3 R32
ESIE22-04B – 2022.08