I monitor this board and read a lot of the posts, so I know AC is a touchy
subject on here. However, I have done what I can and I need some additional
info if possible.
I have central air and it has run without problem for 7 years or so. I have an
HVAC company that checks it out twice a year. About a month ago, the breaker
dedicated to the AC started tripping. It doesn't trip consistently and indeed
is very sporadic, running for days and then tripping. I had the company out
and they replaced the breaker as they could find no problem. I had to leave
for Florida for disaster relief work and was gone a month. During the time I
was in Florida, the new breaker tripped. My wife called a company that a
friend of hers has used for some time. They came out and did a lot of
monitoring supposedly and then told her it was "drawing too many amps" and
that the AC unit needed to be replaced (to the tune of $1300). When she called
me about it, I told her to get another company to look at it. She did, and
this company said it was fine, except that it was overcharged with freon. They
drained a little off (this was two weeks ago) and it has worked without
tripping the breaker since.
1. Is this a plausible scenario? Could being overcharged with freon cause
the AC to draw more amps, or is there something else underlying this?
2. If someone has some ideas or has encountered this before, how was it
fixed? I know there are a lot of variables that could go wrong here, but what
are some of them.
3. How can I find an HVAC co. to fix this? I had a co. that did yearly
maintenance, a referral from someone we know who recommended a company, and
lastly a company that we have seen quite often in the neighborhood. You have
heard the results above. Who to believe?
We moved into our current house less than a year ago, so have no idea
when the AC was inspected last -- perhaps not since it was installed
about three years ago.
A couple of months back, when I saw someone installing AC at our
neighbor's house, I asked him if we should have ours inspected -- so he
could easily have said "Yes" just to get the job. On the contrary, he
said, "If it's working OK, leave it alone."
On 09/15/04 01:41 pm RVanhoo put fingers to keyboard and launched the
following message into cyberspace:
There are several good reasons to have your system checked each spring
and each fall.
1. The manufacturer requires semi-annual checks to perpetuate the
2. It give you peace of mind that if there is something going wrong,
the technician has a good chance of seeing problems before they cause
3. It keeps your favorite AC man busy. You help support him by
allowing him to make some bucks. If he doesn't go bankrupt, he will
be available next time you need someone you trust.
That attitude of "If it ain't broke, don't fix it." is ok for a lot
of people including me, but if my ac breaks I just have to go out to
my truck and get the necessary parts to fix it. Most people would
rather have the peace of mind.
Just my 2 cents.
On Wed, 15 Sep 2004 14:16:16 -0400, Minnie Bannister
gauges don't lie, provided you know how to read them.
way too much refrigerant would cause high starting current especially if
it short cycles because of a utility power blink/brownout.
Trust that guy for now, be happy - don't worry.
Comparing the amp draw on the amp meter to the RLA (Running Load Amps)
on the nameplate of the unit is a good way to tell if the ac is using
too much amperage. Did the tech show you the gauge or did he pack
away all his tools then tell you about the problems he found.
Selling you a new AC will fix most problems. That's what a lot of
techs do when the don't really know how to fix them. No way for us to
know in this case based on information supplied.
Overcharged air conditioners are a very common thing and it can cause
nuisance breaker trips. If the ac continues to operate normally, I
would say the guy knew what he was doing.
If the breaker problem comes back, I would also check the breakers on
either side of the ac breaker. Have the tech check them with his
infra-red temperature gun. A hot breaker is a defective breaker and
can cause the adjacent breaker to trip.
On 15 Sep 2004 17:41:33 GMT, firstname.lastname@example.org (RVanhoo) wrote:
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