Daikin FTXP20-71L Service Manual page 79

To perform an electrical check of the indoor unit main PCB
To check if the correct spare part is installed
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
Split Comfora R32
ESIE18-01E – 2023.01
b
a
a Black wire
b White wire
Is the measured voltage on the indoor
unit PCB correct?
Yes
No
3 Check the power supply to the indoor unit, see
4
procedures" [ 142].
Is the power supply to the indoor unit
correct?
Yes
No
Procedure not available yet.
Prerequisite: First perform all earlier checks of the indoor unit main PCB, see
"3.6.1 Checking procedures" [
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 main PCB installed?
Yes
Action
Return to
procedures" [
PCB and continue with the next
procedure.
Continue with the next step.
Action
Correct the wiring between the power
supply terminal of the indoor unit and
the indoor unit PCB, see
procedures" [
See "To check the power supply to the
indoor unit"
procedures" [
4
78].
Action
Return to
procedures" [
main PCB and continue with the next
procedure.
3 Components
|
"3.6.1 Checking
4
78] of the indoor unit
"4.1.1 Checking
"3.6.2 Repair
4
81].
("4.1.2 Repair
4
143]) for the next steps.
"3.6.1 Checking
4
78] of the indoor unit
Service manual
79