Daikin FTXP20-71L Service Manual page 85

To check the HAP LED of the main PCB
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
Split Comfora R32
ESIE18-01E – 2023.01
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Turn ON the power of the unit.
2 Measure the voltage between pins 1‑2 of the connector S10 on the main PCB.
Result: The measured voltage MUST be 230 V AC.
a
a Connector S10
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" [ 84].
1 Locate the HAP LED on the main PCB.
3
|
"3.9 Plate work" [
Action
Return to "3.7.1 Checking
4
procedures" [ 84] of the PCB and
continue with the next procedure.
Continue with the next step.
"4.1.1 Checking procedures" [
Action
Correct the wiring from the main power
supply terminal to the main PCB, see
"3.7.2 Repair procedures" [
Adjust the power supply to the unit, see
"4.1.2 Repair procedures" [
Components
4
111].
4
142].
4
96].
4
143].
"3.7.1 Checking
Service manual
85