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Components
Service manual
113
RXM20~71R + ARXM25~71R + FTXM20~71R + ATXM25~50R +
FVXM25~50A
Split New Perfera R32
ESIE20-11 – 2021.01
Is the correct spare part for the indoor
unit power PCB installed?
Action
Yes
Return to
110] of the indoor unit
power PCB and continue with the next
procedure.
No
Replace the indoor unit power PCB, see
To check the wiring of the indoor unit power PCB
Prerequisite:
First perform all earlier checks of the indoor unit main PCB, see
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
INFORMATION
Correct the wiring as needed.
Is the problem solved?
Action
Yes
No further actions required.
No
Return to
102] of the indoor unit
power PCB and continue with the next
procedure.
To check the fuse of the indoor unit main PCB
Prerequisite:
First perform all earlier checks of the indoor unit main PCB, see
1
Measure the continuity of the fuse. If no continuity is measured, the fuse has
blown.