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Components
Service manual
77
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
Output voltage on indoor unit power
PCB correct?
Action
Yes
Correct the wiring between the indoor
unit main PCB and indoor unit power
PCB, see
No
Perform a check of the indoor unit
power PCB, see
To check the HAP LED of the indoor unit main PCB
Prerequisite:
First perform a power check of the indoor unit main PCB, see
1
Locate the HAP LED on the indoor unit main PCB.
a
a
HAP LED
INFORMATION
Make sure the correct software is available on the PCB. If NOT, update using the
updater tool.
Does the HAP LED blink in regular
intervals (1 second ON/1 second OFF)?
Action
Yes
Return to
main PCB and continue with the next
procedure.
No
Replace the indoor unit main PCB, see
To check if the correct spare part is installed
Prerequisite:
First perform all earlier checks of the indoor unit main PCB, see
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.