Daikin Sensira Series, Service Manual

Page: 75 / 172

2 | Components
Service manual
75
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Split Sensira R32
ESIE18-12E – 2021.02
Is the measured voltage on the PCB
correct? Action
Yes Return to "Checking procedures" [
4
74]
of the PCB and continue with the next
procedure.
No Continue with the next step.
3 Check the power supply to the unit, see "3.1.1 Checking procedures" [
4
127].
Does the unit receive power? Action
Yes Replace the main PCB, see "Repair
procedures" [ 4 81].
No Adjust the power supply to the unit, see
"3.1.2 Repair procedures" [
4
128].
To check the HAP LED of the main PCB
Prerequisite: First check the power supply to the main PCB, see "Checking
procedures" [
4
74].
1 Locate the HAP LED on the 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 "Checking procedures" [
4
74]
of the main PCB and continue with the
next procedure.
No Replace the main PCB, see "Repair
procedures" [
4
81].
To check if the correct spare part is installed
Prerequisite: First perform all earlier main PCB checks, see "Checking
procedures" [ 4 74].
1 Visit your local spare parts webbank.