All,

Just wondering if someone out there could toss me a few ideas as to
what might be up with our air conditioning system.

We have a 3 thermostat home (a zoned system). The master bedroom is
always getting colder than the other rooms. Our electric bills have
been in the 500 hundred dollar range so this problem is starting to
hurt our wallet. I recently replaced the thermostat in our master room
and that has not helped at all. The master bedroom still gets real cold
(even when I have turned that thermostat off). So, I turned off all
the thermostats in the house and it got hot. So then what I did was
went upstairs and turned on only that thermostat - my master bedroom is
cold again.

So, what could the problem be? My wife and I are clueless but our
theory was that since we only have 1 physical a/c unit outside there
has to be a distribution center upstairs that divides where air is
going to the 3 different zones in our home. Maybe one of the doors is
stuck open. So, when the upstairs is cooling, its not only cooling off
that room (which is natually hotter since its an upstairs type bonus
room) as opposed to our master bedroom which is on the first floor.
Does our theory make any sense? Please help

Chuck