Before I replaced the t'stat - I would remove it from the sub base and be
sure all the wires are connected properly. I would also check for the same
on the air handling unit as well. There is a "remote" possibility that when
the unit cycles off and on some vibration may have loosened the connections
at the unit. If those do not prove to be viable results, I would then
replace the t'stat. Anything more than that (since you are working with low
voltage wiring) I would consider calling in a pro to troubleshoot the
system. They're trained for these situations.

Jim




"Jeffy3" wrote in message
om...
"Jim Mc Namara" wrote in message
. com...
A little more info please, Jeffy . . .

Which switch are you turning off and on and where is it located?

Jim

"Jeffy3" wrote in message
om...
Twice this summer our central air stopped running. The one time we
got it started again by just flipping the off and on switch a few
times. Last night even that didn't work so we just went to bed. It
suddenly started this morning after I played with the switch. I
don't want to call in service until I am better armed with information
(I don't want someone trying to sell me a whole new system when it
might just be a loose wire or something).

Anyone have any clue if that is a symptom of a thermostadt problem as
opposed to the ac unit itself? We have a Hunter programmable
thermostat and I changed the battery on it last night too.



Turning the thermostat from a/c to off and back again a few times.