Lock Error On Fan1 Of Outdoor Unit. (E-448) - Samsung AM053FXMDCH Service Manual

3-16. Lock error on Fan1 of outdoor unit. (E-448)

Outdoor unit Display
Judgement Method
Cause of problem
Auto Trial Operation
Did the error occurs?
Did you check
the foreign objects on the Fan
rotary wing?
Fan do rotate by hand?
If you rotate the fan by
hand, the noise occurs?
Connection wire of
Fan Motor didconrmation ?
(Check the connection
status of the Fan1 and Fan2.)
Replace Fan PCB.
50
Yes
Yes
Power Off
Yes
Yes
No
No
E-448
No
No
Remove the foreign objects and restart.
No
Yes
Yes
Check the connection status, and then restart.
End of Service.
Replace Fan Motor.
Replace Fan Motor.
Samsung Electronics