My a/c and fan is working fine. The heat will not kick on. The compressor comes on and we have checked all the breakers. We were told to push a reset switch, but cannot locate one! The fan also comes on while on heat setting, and fan "ON" but blows cold air. It also won't kick on when fan is on "AUTO". After we adjust the tstat, we hear a click, but then the heat does not come on. Please help, were cold!! :eek: