what a maroon wrote:
On Fri, 10 Oct 2008 06:57:36 -0500, "HeyBub"
wrote:


We have an educational moment at hand!

What excessive expense could one expect from the lack of what
periodic maintenance done by a professional?


Compressor failing as evidenced by amp draw, outdoor fan motor failing
as evidenced by amp draw, capacitor failing as evidenced by micro
farad reading, system leaking refrigerant as evidenced by low
refrigerant pressure, contactor ready to short as evidenced by all the
bugs crawling around in the system, indoor coil icing up because
homeowner never changes filter...

Good response! But I'm still confused.

Suppose a professional detects an increased amperage due to impending
compressor failure. Where is the savings due to be had by this early
detection?

Admittedly, replacing the compressor now (instead of six months down the
line) will result in lower electric bills. Is that what you had in mind?