Daikin FTXA20AW - Page 93

2 | Components
Service manual
93
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
Does the HAP LED blink in regular
intervals (1second ON/1second OFF)?
Action
Yes Return to "Checking procedures"[491]
of the main PCB and continue with the
next procedure.
No Replace the main PCB, see "Repair
procedures"[498].
To check if the correct spare part is installed
Prerequisite: First perform all earlier main PCB checks, see "Checking
procedures"[491].
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.
NOTICE
Also check that the correct spare part is installed for the capacity adapter.
Is the correct spare part for the PCB
installed?
Action
Yes Return to "Checking procedures"[491]
of the main PCB and continue with the
next procedure.
No Replace the main PCB, see "Repair
procedures"[498].
To check the wiring of the main PCB
Prerequisite: First perform all earlier main PCB checks, see "Checking
procedures"[491].
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 "5.2 Wiring
diagram"[4171].
INFORMATION
Correct the wiring as needed.
Is the problem solved? Action
Yes No further actions required.
No Return to "Checking procedures"[491]
of the PCB and continue with the next
procedure.
To check the fuse of the main PCB
Prerequisite: First perform all earlier main PCB checks, see "Checking
procedures"[491].