On Sun, 22 Aug 2010 19:06:51 -0700 (PDT), ransley
wrote:

My 1986 Lennox AC compressor unit just stopped running, the fan isnt
running and no noise comes from the unit, I reset the breakers and the
thermostat is the old round analog Honywell, its calling for cooling.
Ive never worked on this but is there anything I can test with a V
meter before I call a pro. 3 weeks ago I lost all freon from a big
leak and had it fixed, all has been fine until today. I would think at
least the fan would run.

My HVAC took a time-out a few weeks back. Nothing would work at all.
The fan would not even run, like yours.

I presume the fan blower gets its 110V power from a light switch box
in the attic. The switch had failed and no power was getting to the
blower fan.

YMMV