Samsung AJ024TXJ3CH - 4-6-4 Outdoor unit fan error

Troubleshooting
Samsung Electronics 4-33
4-6-4 Outdoor unit fan error
1. Check items
1) Are the input voltage and power connection correct?
2) Is the motor connecting wire connected to the outdoor unit PCB correctly?
3) Are the indoor/outdoor fuses connected?
4) Are there any obstacles near the motor or propeller?
5) Is the motor driver out of order?
6) RJ040~080 Model check CN901, RJ100 Model Check CN 90.
2. Check procedure
Yes
Turn off the power and restart the unit.
Check the outdoor unit power supply error.
No
Is the fan (CN901) connected correctly?
Yes
ŵʪΧɇʀʪϩ˵ʪЭʪθϩʪθťA9ࢋ
No
Is the resistance
between pin1 and pin3 of the fan
࣍AĘߪߡߢ࣎ͱЭʪθߢ༯U
Yes
ŵʪΧɇʀʪϩ˵ʪЭʪθϩʪθťA9ࢋ
No
Ãϑϩ˵ʪЭͱϩɇ˝ʪ
between pin4 and pin3 of the fan (CN901)
ͱЭʪθߢߦǤࢌ
Yes
Replace the fan motor.
No
Ãϑϩ˵ʪЭͱϩɇ˝ʪɵʪϩиʪʪ
pin5 and pin3 of the fan (CN901) during
the operation 1V~6V?
Yes
Yes
ŵʪΧɇʀʪЭʪθϩʪθťA9ࢋ
Replace the fan motor.
ŵʪΧɇʀʪϩ˵ʪЭʪθϩʪθťA9ࢋ
No
No
Is the fan running the operation mode?
Uͱʪϑϩ˵ʪЭͱϩɇ˝ʪ
between pin6 and pin3 of the fan (CN901) fluctuate?
(High 5V~6V, Low:0V~1V)