Daikin FTXA20A Service Manual page 77

To check the HAP LED of the indoor unit main PCB
To check if the correct spare part is installed
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?
Yes
No
Prerequisite: First perform a power check of the indoor unit main PCB, see
"2.8.1 Checking procedures" [
1 Locate the HAP LED on the indoor unit main PCB.
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)?
Yes
No
Prerequisite: First perform all earlier checks of the indoor unit main PCB, see
"2.8.1 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.
Action
Correct the wiring between the indoor
unit main PCB and indoor unit power
PCB, see "3.1.2 Repair
procedures" [
Perform a check of the indoor unit
power PCB, see
procedures" [
4
75].
a
Action
Return to "2.8.1 Checking
procedures" [
main PCB and continue with the next
procedure.
Replace the indoor unit main PCB, see
"2.8.2 Repair
4 75].
2 Components
|
4
157].
"2.9.1 Checking
4
81].
4
75] of the indoor unit
4
procedures" [ 78].
Service manual
77