"AT" wrote in message
...
I have a Lennox 10 ACB Compressor system. I noticed today that the Air
compressor (external) was making a humming sound and the fan was not
working. The rest of the Air Conditioning system seems to be working
fine.

Any suggestions on how to resolve the above issue.

Regards

AT

Fan motor is not working. Could be the motor, could be a capacitor, could
be a few things. If you don't know how to diagnose that stuff, call a
service tech. Check out the service manual here
http://hvacpartsshop.net/10ACB_Series.pdf