Samsung AQ09VFUAGM/CV Service Manual page 113

Outdoor detailed inspection procedure
12-3-4
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
(Use Remote-control, button in
3
indoor set) - A*V18P**
Supply power and operate the set
(Use Remote-control, button in
3
indoor set) - A*V24***
4 Check the LED lamp display
Inspection Method
1) Is 1st fuse disconnected?
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?
Check the power voltage
1) Is the voltage between Terminal
block L-N 200Vac~240Vac?
2) Is the C006 voltage 200Vac~240Vac?
3) Is the CE151 voltage 280Vdc~320dc?
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 CE154 voltage 15Vdc?
7) Is the voltage CE155 voltage
3.3Vdc?
8) Is the voltage CE158 voltage 5Vdc?
9) Is the voltage CE157 voltage 12Vdc?
Check the power voltage
1) Is the voltage between Terminal
block L-N 200Vac~240Vac?
2) Is the C002 voltage 200Vac~240Vac?
3) Is the CE101 voltage 280Vdc~320dc?
4) Is the PFCM(#26-#27) voltage
200Vac~240Vac after 3 minutes later?
5) Is the CE001 voltage 280Vdc~320dc
after 3 minutes later?
6) Is the voltage CE110 voltage 15Vdc?
7) Is the voltage CE105 voltage
3.3Vdc?
8) Is the voltage CE106 voltage 5Vdc?
9) Is the voltage CE108 voltage 12Vdc?
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
L d h t
. Switching Trans of Power circuit is
faulty
L d h t
. Switching Trans of Power circuit is
faulty
. Load short
. 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)
. PTC001 open
. RY001, RY002 is faulty
. Outdoor Micom(IC501) error
. PFCM 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
L d h t
. Switching Trans of Power circuit is
faulty
L d h t
. Switching Trans of Power circuit is
faulty
. Load short
. F1,F2 wire wrong wiring
. Outdoor PBA is faulty