"Matt" wrote in message
oups.com...
FYI, there is a more than fair chance you have damaged your furnace by
powering up with bare wires not connected to a thermostat, and
therefore, more than likely connected to each other.

Would you mind explaining? Most systems don't have a "common" (neutral)
wire at the 'stat, so shorting any wires out wouldn't do anything more
harmful than what the t-stat does when it calls for heat. About the worst
thing you could do is have the heat and AC running at the same time, but
that would be pretty unlikely.

-Tim