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Amp tripping circuit breaker.

I have a 20 amp circuit, AFCI breaker, with only my entertainment rack on it.  The breaker has been tripping periodically for about a year now.  Recently the problem has been worse and I suspected my amplifier.  Long story short, the breaker only trips when the amp is plugged in, with statistical certainty.  Unknown if it matters if amp is on or not.

Amp is a Monolith 7.  I opened the cover and saw no obvious signs of damage.  Everything is clean and dust free.

any thoughts?
magneplanman
jea48
4,425 posts
 
@OP

By chance is the electrical panel/ AFCI breaker in the panel a Square D type? By chance does it have a white test push button? If so it is a CAFI AFCI and you can test whether the breaker is tripping on over load or short circuit,  or,  if it is tripping on arc fault.

Video
https://www.youtube.com/watch?v=Rw8exWpipJY

Here is another Link for a square D CAFI AFCI breaker. Click on the first video on the left hand side of the page.
https://www.homedepot.com/p/Square-D-Homeline-20-Amp-Single-Pole-Combination-Arc-Fault-Circuit-Break...


*Do not attempt to change out the breaker yourself... Hire an electrician.



millercarbon's avatar
millercarbon
12,531 posts
 
Did you nail anything to a wall over that time period?


Do not attempt to hammer anything into a wall. Hire a carpenter.
magneplanman OP
7 posts
 
Thanks everyone, lots of good education material.  I think I will replace both the amp and the breaker.
magneplanman OP
7 posts
 
If it happens with the amp plugged in and turned off there is a statistical certainty its not the amp
so far that hasn’t happened, since I’ve kept a log

And yet this did not trip the breaker. This is what we call a "clue".

Are you implying that the amp tripping is an independent issue from the breaker?  maybe I’m not following.
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