Daikin Sky Air Advance RZA200D7Y1B Service Manual page 82

3 | Components
To check the HAP LED of the inverter PCB
Service manual
82
1 Access the back side of the switch box, see
2 Turn ON the power of the unit.
3 Measure the voltage between the following wires on the inverter PCB.
Result: All measurements MUST be 400 V AC.
▪ L1B–L2B
▪ L1B–L3B
▪ L2B–L3B
a L1B
b L2B
c L3B
Is the measured voltage correct?
Yes
No
4 Measure the output voltage between the following wires on the noise filter
PCB.
Result: All measurements MUST be 400 V AC.
▪ L1B–L2B
▪ L1B–L3B
▪ L2B–L3B
Is the measured output voltage on the
noise filter PCB correct?
Yes
No
Prerequisite: First perform a power check of the inverter PCB, see
4
procedures" [ 81].
1 Locate the HAP LED on the inverter PCB.
"3.12 Plate
a b c
Action
Return to
procedures" [
continue with the next procedure.
Continue with the next step.
Action
Correct the wiring between the inverter
PCB and the noise filter PCB, see
"4.1.2 Repair
Perform a check of the noise filter PCB,
see "3.10.1 Checking
procedures" [
4
work" [ 111].
"3.7.1 Checking
4
81] of the PCB and
4
procedures" [ 137].
4
101].
"3.7.1 Checking
RZA200+250D7Y1B
Sky Air Advance-series
ESIE19-13A – 2020.05