Daikin FTXA20A - Page 77

2 | 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 "3.1.2Repair
procedures"[4157].
No Perform a check of the indoor unit
power PCB, see "2.9.1Checking
procedures"[481].
To check the HAP LED of the indoor unit main PCB
Prerequisite: First perform a power check of the indoor unit main PCB, see
"2.8.1Checking procedures"[475].
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 "2.8.1Checking
procedures"[475] of the indoor unit
main PCB and continue with the next
procedure.
No Replace the indoor unit main PCB, see
"2.8.2Repair procedures"[478].
To check if the correct spare part is installed
Prerequisite: First perform all earlier checks of the indoor unit main PCB, see
"2.8.1Checking procedures"[475].
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.