Central
AC Units
Question
I have a two-story condo with electric heating (central air.) There
is one heating zone on the top floor and high ceilings on the bottom
floor. In winter, there is typically a 10-15 degree difference between
the two floors? How can I warm up the bottom floor?
Answer
Somebody did no favors with a setup like that. From your description,
your heating system may be a heat pump, with electric backup when it
gets too cold for the heat pump to work. Whether you have a heat pump
and electric backup or just electric heat, one good start would be put
in a second heating zone for the bottom floor. All high-resistant electric
units can be controlled in each room, or at least they should be. You
can play around with it until you get reasonable heat on each floor.
If none of these tricks works, I suggest you take it up with association!
*****
Question
My air-conditioning unit is in my attic, and there is a leak in one
of the corner unit, where a bit of rust is showing. The drain tube is
OK, delivering condensate to the outdoors. The unit is 5 years old and
sits on a tray set on open joists, but there is not big enough for the
unit, so the leak is getting through the insulation and into the bedroom.
What can I do?
Answer
I don't know why such a unit would leak, unless the tube has an extra
hole and part of the condensate is flowing from the unit and not down
the tube. Or, condensation is occurring inside the unit and finding
its way down. Have the dealer check it out. In the meantime, you can
set the unit on a tray that will cover the entire unit, not just part
of it.
*****
Question
My central air-conditioning makes a terrible screeching sound when the
compressor kicks in. It last for about two minutes then is intermittent.
Part of the unit was replaced but the screech continues. The installer
blames the contractor and the contractor blames the installer. Now what?
Answer
Your only choice is to get after one or the other, or both. If given
enough threats, or if you can withhold money, they will move. If any
amount of cajoling or threats does not work, have your attorney write
them a letter.
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