Eric - I agree that you should try another breaker. But first, when you
trip the breaker what else goes out? In other words, is it a dedicated
circuit for the bed or is the circuit shared with something else? As an
example, I can't start my compressor when the living room TV is on or I
trip the breaker. Even then, to start it initially, I have to pulse it
a few times or it trips the breaker. My situation is a 15A compressor on
a 20A circuit, but it is a good distance from the breaker box with
several connections along the way. (The house came this way - a future
You may also have a bad outlet. You could try a good 20A outlet (one of
the prong holes looks like a sideways "T") and don't use the push in
connector/back-wire. You want a large part of the wire well clamped for
a great connection.
Do you have a different circuit near enough to try? That is also a
I've never used one, but search for "clamp on amp meter". It seems like
a easy solution to check the current going to the bed. Check it
compared to the power tag on the bed. If you don't have one, you can
buy a new tool. Amazon had them starting about $20.
If all of that is good, I'd try the top or bottom of the bed by itself.
My assumption here is that one part may be bad and turning off a bank of
lights is easier than individual lights. The top and bottom should each
pull a near equal current, so you can do a process of elimination and
look for the problem - half of the top/bottom, then half of the next bad
Also, that connector that shorted may have failed due to an overload, so
I'd look at what is around it as well.
On 5/6/2013 11:14 AM, email@example.com wrote:
> OK, Since I'm out of luck for my other EE question, let me try an easier
> one. Note, not much shop content, but it does allow me to use tools, and
> it makes the SO happy.
> Anyway, I got a tanning bad for the SO. She only uses it to relax her
> muscles since her car accident. But here is the problem...
> The machine worked fine for a while (I got it used*) But now, when she
> starts it up, it trips the breaker. I called the company and the breaker
> size (and wiring) I ran was for the correct size (I think it was a 10%
> over max rating.)
> And since the machine worked fine for a while, what could be causing the
> extra current draw? (and more importantly, how do I find it?)
> Do I just try another breaker first? is there a way to measure it?
> *= I got this unit used from someone who had it. They got rid of it
> because it 'sparked and made a loud noise.' When I got it home, turns
> out that one of the connectors had shorted. I fixed the connector and
> have been using it since.
> Thanks again
> Eric P
> "Be as beneficent as the sun or the sea, but if your rights as a rational
> being are trenched on, die on the first inch of your territory." Ralph
> Waldo Emerson
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