Smarty wrote:

The outdoor fan may run on 110V even though the compressor unquestionably
runs on 220V. Therefore, a blown fuse, bad contactor, or loose connection on
one of the "hot" feeds to the outdoor unit could possibly explain this set
of symptoms.

Smarty

That's possible, too -- I hadn't thought of it. So thanks for pointing
it out.

I think the bottom line is it's awfully hard to diagnose these things
long distance, especially given the variety of equipment in the field --
the OP is going to need to get somebody with some familiarity with the
basics and a multimeter on the scene to check it out.



"CJT" wrote in message
...

wrote:


Hello,

My central a/c system will not turn on and I really don't want to
spend the $$$ to get someone out to fix it if it is no big repair.
Anyway, here's what happens...

Turn the a/c on by lowering the temperature inside on the thermostat
on the wall in the hallway. The central fan blows, but nothing cold
comes out. Actually the air is pretty hot! The outside unit is not
making the usual noise that we hear when it runs normally, but the fan
on the top is running....I went out to see if kicking it would make it
work and noticed the fan. Anyway, if someone more knowledgable could
give me an idea of ehat is going on, I would really appreciate it. We
came back last night from vacation to find our a/c out and with no
good reason.

Thanks!

Crista


If the outside fan is running but not the compressor, then it's
likely the compressor motor itself or its protective circuit. If it
were the contactor (i.e. the cheap repair) I don't think the outside
fan would be running, because they're normally on the same circuit.

I would try shutting it completely off (preferably at the breaker box)
and letting it cool for a couple of hours, then trying to start it
again.


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