Daikin Emura RXJ20A5V1B Service Manual page 104

4 | Components
To check the HAP LED of the indoor unit main PCB
Service manual
104
a
a Connector S300A
Is the measured voltage on the indoor
unit main PCB correct?
Yes
No
3 Measure the output voltage between the pins 1‑4 of the connector S102 on
the indoor unit power PCB.
Result: The measured voltage MUST be 324 V DC.
Output voltage on indoor unit power
PCB correct?
Yes
No
Prerequisite: First perform a power check of the indoor unit main PCB, see
"4.9.1 Checking procedures" [
1 Locate the HAP LED on the indoor unit main PCB.
Action
Return to
procedures" [
main PCB and continue with the next
procedure.
Continue with the next step.
Action
Correct the wiring between the indoor
unit main PCB and indoor unit power
PCB, see "5.1.2 Repair
procedures" [
Perform a check of the indoor unit
power PCB, see
procedures" [
4
103].
"4.9.1 Checking
4
103] of the indoor unit
4
181].
"4.10.1 Checking
4
108].
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04B – 2022.08