Tricky Electrical Problem - Stumps Electricians

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  #1  
Old 11-10-11, 03:44 PM
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Tricky Electrical Problem - Stumps Electricians

I have a room that I added to my house a year ago. My house was built in 1929. Ever since then, in my new bedroom which has some recess lighting and typical wall outlets. Equipment in my room includes a Mac computer, 30" tv, and DVD player and in the walk-in closet, i have some basic lighting there as well. So, the problem is this:

Every 3 days (approximately), the power in my bedroom will trip. Doesn't have matter if my usage is high or low, it will trip. I've had several so call electricians look at it but they can't figure it out. They've tested the circuit breaker (15 amps and is new) and it works fine. They tested the wiring and it's fine. They don't seem to know where the problem is. What should be looking for to resolve this issue?
 
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Old 11-10-11, 03:56 PM
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Is this an AFCI breaker? Can you pinpoint an event that happens every three days?
 
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Old 11-10-11, 04:35 PM
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Yes, it is an AFCI breaker. No particular event. I can be watching TV or coming home from vacation and find that it has tripped.
 
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Old 11-10-11, 05:07 PM
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If your electrician friends can't figure out the "industry run" AFCI code program isn't amuk, then they must be blind. AFCI's are notorious for tripping. Have they tried a regular breaker in the slot? Sorry, Jim, your thunder....roll.
 
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Old 11-10-11, 05:37 PM
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No problem Larry, glad to have the help.

I think this is going to turn into an easter egg hunt looking for a loose connection.
 
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Old 11-10-11, 05:42 PM
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Thanks guys, at least it's something to look at. I'll try the regular GFCI circuit breakers.
 
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Old 11-10-11, 05:53 PM
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Originally Posted by amelectrician View Post
Thanks guys, at least it's something to look at. I'll try the regular GFCI circuit breakers.
I am not sure why you would need to check a GFI protected circuit if the problem is in a AFCI circuit. The two are unrelated.
 
  #8  
Old 11-10-11, 06:09 PM
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A regular breaker is neither AFCI nor GFCI. Just a regular breaker.

And do you have a smart electric meter?

I have read recently that the RF signals in smart electric meters are tripping AFCI's when they are installed close to the meter. Also vacuum cleaners can trip these along with a host of many other things.

Here is that info on smart meters...
Smart Meters tripping AFCI's - InterNACHI Message Board
 
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Old 11-11-11, 04:24 AM
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Bill, I was not aware of the RF tripping. And, back to back installation of meterbase and breaker panel, would certainly put them in close proximity. Good info. Thanks.
 
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Old 11-11-11, 07:00 AM
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And it could be the electric company is accessing the meter every three days. I partly base that on the fact that when I access my smart meter through Google the info sometimes is two or three days out of date.
 
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Old 11-12-11, 10:29 AM
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According to a UL person the vacuum should cause no issues with an AFCI circuit.
 
  #12  
Old 11-12-11, 12:54 PM
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Originally Posted by pcboss View Post
According to a UL person the vacuum should cause no issues with an AFCI circuit.
That UL person needs to read these forums!
 
  #13  
Old 11-12-11, 07:48 PM
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Originally Posted by Bill190 View Post
That UL person needs to read these forums!
And not only this forum, but also a bunch more!
 
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Old 11-12-11, 09:07 PM
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Also the "AFCI Unwanted Tripping Report" web site has been around for a few years. I don't know where those reports go, but I would bet there are quite a few vacuum cleaner reports in there.

Report AFCI problems here...
AFCISafety.org :: AFCI Unwanted Tripping Report
 
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