"Art Renkes" wrote in message
...

snip

August (in Central Florida). I may be wrong, but until something
better comes along, my theory is that a faulty contact between pin(s)
and socket may have resulted in inconsistent actuation of the
reversing valve in the system, and that the friction of momentarily
breaking and re-making this connection has at least for now resulted
in a 'good' contact. It seems to me that this could explain both the
warm air we experienced many times while in the cooling mode, and the
much higher than normal power usage observed during the erratic
performance period. Any different theories and/or comments will be
welcomed. Thank you.
Replace deadspam with yahoo to reply.

Sounds reasonable.

Reversing valves can be "plumbed" either to default on heat or cool........I
would assume yours defaults to heat--in any case, a helper should be able to
hear the valve click at the condensor when it is energized / de energized
whenever you manually change the stat setting from "off" into either the
"heat" or "cool" mode.

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SVL