George E. Cawthon wrote:
Edwin Pawlowski wrote:

"All in One Service and Repair" wrote in message


Generaly, when you leave the fan switch on, on. it is not in cooling
mode,
it is in fan mode. I may be wrong but i thing he may have ment run
the A/C
24-7, in other words, set it at a decent temp. and leve it be. dont
cut it
on when it is to hot, by that time it has to work twice as hard to
catch up.




That was not my interpretation at all. Some furnaces have a switch
that allows you to run the fan even if the thermostat does not call
for heat or cooling. It is separate, mounted on the blower, not the
one on the thermostat. That may be the situation here. I've seen
systems designed to have constant running blowers for just that
reason, to distribute the air and keep the temperature more constant.
Some drop to a lower speed setting.

Any decent thermostat has a switch for automatic operation and fan on,
and the fan will operate whether in cool, heat, or off mode. Note I
said "decent thermostat." I'm sure there are lots of primitive controls
out there, but why one wouldn't spend $40 or so for a modern digital
thermostat is beyond me.

plus some furnaces dont like the blower on while the gas is starting up.
Not sure about A/C though.

Whats the electricity impact of this?

--
Respectfully,


CL Gilbert