Daikin Sensira Series - Page 68

2 | Components
Service manual
68
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Split Sensira R32
ESIE18-12E – 2021.02
Is the power supply to the indoor unit
correct?
Action
Yes Correct the wiring between the power
supply terminal of the indoor unit and
the indoor unit PCB, see "2.6.2Repair
procedures"[469].
No See "To check the power supply to the
indoor unit" ("3.1.2Repair
procedures"[4128]) for the next steps.
To perform an electrical check of the indoor unit main PCB
Procedure not available yet.
To check if the correct spare part is installed
Prerequisite: First perform all earlier checks of the indoor unit main PCB, see
"2.6.1Checking procedures"[467].
1 Visit your local spare parts webbank.
2 Enter the model name of your unit and check if the installed spare part
number corresponds with the spare part number indicated in the webbank.
Is the correct spare part for the indoor
unit PCB installed?
Action
Yes Return to "2.6.1Checking
procedures"[467] of the indoor unit
PCB and continue with the next
procedure.
No Replace the indoor unit PCB, see
"2.6.2Repair procedures"[469].
To check the wiring of the indoor unit main PCB
Prerequisite: First perform all earlier checks of the indoor unit main PCB, see
"2.6.1Checking procedures"[467].
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 "5.2 Wiring
diagram"[4142].
INFORMATION
Correct the wiring as needed.
Is the problem solved? Action
Yes No further actions required.
No Return to "2.6.1Checking
procedures"[467] of the indoor unit
main PCB and continue with the next
procedure.