On Jun 28, 7:35*pm, AT wrote:
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

The rest of the system could not be working fine if the outside fan
was not blowing air over the condensing coils to liquify the
refrigerant before sending it back to the A-coil in the blower unit
inside the house. That is assuming you have a conventional system.