Samsung AR09NXFSPWKNEE Service Manual page 89

10-2-34 Outdoor detailed inspection procedure
No procedure
Plug out and pull the PCB out of
the control box
1
Check the PCB fuse
(Wait 3 minutes after power off)
2 Check the Wiring
Supply power and operate the set
3 (Use Remote-control, button in
indoor set)
4 Check the LED lamp display
10-35
Inspection Method
1) Is 1st fuse disconnected?
2) Is indoor PBA faulty?
1) Is the Compressor wire connected
clockwise?
2) Is the Reactor wire connected
normal?
3) Is the Fan wire connected normal?
4) Is the 4way wire connected normal?
5) Is the sensor wire connected
Check the power voltage
1) Is the voltage between Terminal
block "L" , "N" 220V ~ 24VAC?
2) Is the PFC050(#3-#4) input
voltage 200Vac~240Vac?
3) Is the CE151 voltage 280Vdc~320dc?
3) Is the CE101 voltage 280Vdc~320dc?
4) Is the SMPS is normal?
MAIN 12V(CE175) : 11Vdc ~ 13Vdc
5) Is the SMPS is normal?
MAIN 18V(CE170) : 17Vdc ~19Vdc
6) Is the SMPS is normal?
MAIN 5V(CE174) : 4.5V ~ 5.5Vdc
1) Normal : RED on, GRN blink, YEL off
2) Abnormal
- All off : check no power
- abnormal display : check error
mode
Cause
. Over current
. AC part and pattern short of Indoor
PBA
. AC part and pattern short of Outdoor
PBA
. Wrong assembly
. Installation(service) condition is bad
. Power cord is faulty, Indoor PBA
fault, Wrong Power cable Wiring
. L,N,E wire wrong wiring (Terminal
Block-PBA)
. Fuse open
. PT 021 OPEN
. RY021, RY022 is faulty
. Inverter Micom(IC501)error
. Power circuit is faulty
. Load short
. PFC050 is faulty
. Reactor wire is wrong connection
. Switching Trans of Power circuit is
faulty
. Load short
. Switching Trans of Power circuit is
faulty
. Load short
. Switching Trans of Power circuit is
faulty
. Load short
. L,N,C wire wrong wiring
. Outdoor PBA is faulty