Daikin FTXA20A Service Manual page 92

2 | Components
To check the HAP LED of the main PCB
Service manual
92
a Black wire
b White wire
Is the measured voltage on the PCB
correct?
Yes
No
3 Check the power supply to the unit, see
Does the unit receive power?
Yes
No
Prerequisite: First check the power supply to the main PCB, see
4
procedures" [ 91].
1 Locate the HAP LED on the main PCB.
a HAP LED
INFORMATION
Make sure the correct software is available on the PCB. If NOT, update using the
updater tool.
a
b
Action
Return to "Checking procedures" [
of the PCB and continue with the next
procedure.
Continue with the next step.
"3.1.1 Checking procedures" [
Action
Replace the main PCB, see
4
procedures" [ 98].
Adjust the power supply to the unit, see
"3.1.2 Repair procedures" [
a
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
4
91]
4
156].
"Repair
4
157].
"Checking
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05