Outdoor Detailed Inspection Procedure - Samsung AR18HSFNBWKNEU Service Manual

11-2-4 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
11-4
Inspection Method
1) Is 1st fuse disconnected?
1) Is the Compressor wire connected clock-
wise?
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?
Check the power voltage
1) Is the voltage between Terminal block L-N
200Vac~240Vac?
2) Is the C006 voltage 200Vac~240Vac?
2) Is the CN150 voltage 200Vac~240Vac?
4) Is the PFC050(#26-#27) voltage
200Vac~240Vac after 3 minutes later?
5) Is the CE101 voltage 280Vdc~320dc
after 3 minutes later?
6) Is the voltage CN151 #1-#2 voltage 15Vdc?
7) Is the voltage CN152 #1-#2 voltage 12Vdc?
8) Is the voltage CN151 #3-#2 voltage 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 Outdoor
PBA
. Wrong assembly
. Installation(service) condition is bad
. Power cord is faulty, Wrong Power cable
Wiring
. Fuse open
. L,N,F1,F2 wire wrong wiring (Terminal
Block-PBA)
. Power circuit is faulty
. Load short
. Fuse open
. L,N,F1,F2 wire wrong wiring (Terminal
Block-PBA)
. PTC020 open
. RY021, RY022 is faulty
. Outdoor Micom(IC201) error
. PFC050 is faulty
. Reactor wire is wrong connection
. Power circuit is faulty, Load short
. BLDC Fan motor error
. 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
. F1,F2 wire wrong wiring
. Outdoor PBA is faulty
Samsung Electronics