Samsung AR09AXKAAWKNEU, Service Manual

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71
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-con-
trol, 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