Samsung AS09HPB, Service Manual

Page: 60 / 96

Troubleshooting
12-3 Samsung Electronics
12-2-2 The Outdoor unit power supply error
1. Checklist :
1) Are the input power voltage and the power connection correct?
2) Is there no Fuse short in the indoor unit and outdoor unit?
3) Is the cable connected correctly between the indoor unit and outdoor unit in order.
4) Is the wire connected correctly to the terminal block of the indoor unit and outdoor unit?
2. Troubleshooting procedure
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Is the voltage of indoor unit
terminal block 1 and 2 correct
after power input?
Is the R701 resistance of
indoor PCB 200
Ω
?
Exchange the PCB.
No
Normal Operation
Exit
Exchange the fuse. Is the indoor unit fuse normal?
Pull out the power cord
and execute the following step
after 30 seconds.
Is the outdoor unit normal?
Disassemble the BLDC FAN Wire.
Exchange the fuse.
Exchange the PCB. Exchange the BLDC FAN.
Is the +, - of C102 short?
Disassemble the PCB
from the case.
Is the +, - of C102 short?
Are the BLDC FAN Wire
1 and 3 short?
Is there no error at
the insertion of PCB?
Is the outdoor unit normal?
Is the reactor connected correctly?
Connect the reactor wire.
Exchange the PCB.
24437A(1)_1 1/16/05 9:58 PM Page 12-3