Daikin Split Comfora R32 Service Manual page 70

2 | Components
To check the wiring of the indoor unit main PCB
To check the fuse of the indoor unit main PCB
Service manual
70
Is the correct spare part for the indoor
unit PCB installed?
No
Prerequisite: First perform all earlier checks of the indoor unit PCB, see
"2.6.1 Checking procedures" [
Prerequisite: Stop the unit operation via the user interface.
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" [ 137].
INFORMATION
Correct the wiring as needed.
Is the problem solved?
Yes
No
Prerequisite: First perform all earlier checks of the indoor unit PCB, see
"2.6.1 Checking procedures" [
1 Measure the continuity of the fuse. If no continuity is measured, the fuse has
blown.
a
a Fuse
Blown fuse on the indoor unit PCB?
Yes
Action
Replace the indoor unit PCB, see
"2.6.2 Repair
4
68].
Action
No further actions required.
Return to
procedures" [
PCB and continue with the next
procedure.
4
68].
Action
Replace the blown fuse, see
"2.6.2 Repair
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
4
procedures" [ 71].
"5.2 Wiring
"2.6.1 Checking
4
68] of the indoor unit
4
procedures" [ 71].
Split Comfora R32
ESIE18-01C – 2020.07