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SAMSUNG ELECTRONICS
10-2-4 Outdoor detailed inspection procedure
No. Procedure Inspection Method Cause
1 Plug out and pull the PCB out
of the control box
Check the PCB fuse (Wait 3
minutes after power off)
1) Is 1st fuse disconnected? . Over current
. AC part and pattern short of Outdoor PBA
2 Check the Wiring 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 normal?
6) Is the EEV wire connected normal?
. Wrong assembly
. Installation(service) condition is bad
3 "Supply power and operate
the set (Use Remote-control,
button in indoor set)"
Check the power voltage
1) Is the voltage between Terminal block
L-N 200Vac~240Vac?
. Power cord is faulty, Wrong Power cable
Wiring
2) Is the C006 voltage 200Vac~240Vac? . Fuse open
. L,N,F1,F2 wire wrong wiring (Terminal Block-
PBA)
3) Is the CN150 voltage 200Vac~240Vac? . Power circuit is faulty
. Load short
4) Is the PFC050(#26-#27) voltage
200Vac~240Vac after 3 minutes later?
. Fuse open
. L,N,F1,F2 wire wrong wiring (Terminal Block-
PBA)
. PTC020 open
. RY021, RY022 is faulty
. Outdoor Micom(IC201) error
5) Is the CE101 voltage 280Vdc~320dc
after 3 minutes later?
. PFC050 is faulty
. Reactor wire is wrong connection
. Power circuit is faulty, Load short
. BLDC Fan motor error
6) Is the voltage CN151 #1-#2 voltage
15Vdc?
. Switching Trans of Power circuit is faulty
. Load short
7) Is the voltage CN152 #1-#2 voltage
12Vdc?
. Switching Trans of Power circuit is faulty
. Load short
8) Is the voltage CN151 #3-#2 voltage
5Vdc?
. Switching Trans of Power circuit is faulty
. Load short
4 Check the LED lamp display 1) Normal : RED on, GRN blink, YEL off
2) Abnormal
- All o check no power
- abnormal display : check error mode
. F1,F2 wire wrong wiring
. Outdoor PBA is faulty
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