Samsung ASV18PULNXEA, Service Manual

Page: 94 / 110

12-2
6
12-3-4 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?
. Wrong assembly
. Installation(service) condition is bad
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 CE151 voltage 280Vdc~320dc?
. 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 CE154 voltage 15Vdc?
. Switching Trans of Power circuit is
faulty
. Load short
7) Is the voltage CE155 voltage
3.3Vdc?
. Switching Trans of Power circuit is
faulty
. Load short
8) Is the voltage CE158 voltage 5Vdc?
. Switching Trans of Power circuit is
faulty
. Load short
9) Is the voltage CE157 voltage 12Vdc?
. Switching Trans of Power circuit is
faulty
. Load short
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 C002 voltage 200Vac~240Vac?
. Fuse open
. L,N,F1,F2 wire wrong wiring (Terminal
Block-PBA)
3) Is the CE101 voltage 280Vdc~320dc?
. Power circuit is faulty
. Load short
4) Is the PFCM(#26-#27) voltage
200Vac~240Vac after 3 minutes later?
. Fuse open
. L,N,F1,F2 wire wrong wiring (Terminal
Block-PBA)
. PTC001 open
. RY001, RY002 is faulty
. Outdoor Micom(IC501) error
5) Is the CE001 voltage 280Vdc~320dc
after 3 minutes later?
. PFCM is faulty
. Reactor wire is wrong connection
. Power circuit is faulty, Load short
. BLDC Fan motor error
6) Is the voltage CE110 voltage 15Vdc?
. Switching Trans of Power circuit is
faulty
. Load short
7) Is the voltage CE105 voltage
3.3Vdc?
. Switching Trans of Power circuit is
faulty
. Load short
8) Is the voltage CE106 voltage 5Vdc?
. Switching Trans of Power circuit is
faulty
. Load short
9) Is the voltage CE108 voltage 12Vdc?
. 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 off : check no power
- abnormal display : check error
mode
. F1,F2 wire wrong wiring
. Outdoor PBA is faulty
3
Supply power and operate the set
(Use Remote-control, button in
indoor set) - A*V18P**
3
Supply power and operate the set
(Use Remote-control, button in
indoor set) - A*V24***