Sounds like either miswired control wire, or maybe a bad contator on the
condensing unit.

Gonna be hard to diagnose over the internet. Might want to call a repair
guy.

--

Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com


"Greg M" wrote in message
...
I've been having some trouble with the central AC in a house that I just
recently moved into. The problem is, the AC works fine, but it won't keep a
constant temperature. Basically, when I turn the thermostat to "cool" and
"auto" it just runs and runs even after the desired temperature is met. I
thought that it might be a bad thermostat, and since I wanted to upgrade to
a programmable one anyway, I bought a new thermostat (Honeywell CT3500A1004)
and installed it. The AC still does the same thing, I set the temperature at
one day 75 when I left for work and when I got home it was down to 68 and
the AC was still running. Now I haven't been running my AC during the day,
but when I get home the temperature in the house is over 80, so it takes
almost the entire night to get it back to a comfortable level. This is my
last ditch effort before I have someone come out, any suggestions?



Greg M