New Breaker Tripping Suddenly


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Old 06-02-20, 10:17 AM
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New Breaker Tripping Suddenly

I had new electrical installed a few months ago and all of a sudden one of the breakers is tripping (the 15 amp EXCS RM 0). I have only one item plugged into the wall, an older treadmill. Photos attached. Any ideas on what would cause this to happen? Bad circuit? Faulty treadmill plug? It's only started recently, so it's been working fine for a few months. There is a floor board heater in the room, but that appears to be on a dedicated circuit. Thank you.

 
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06-02-20, 11:32 AM
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The plug on the end of the cord looks like it has been yanked. There could be a bad connection in there causes arc trip.
 
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Old 06-02-20, 10:34 AM
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That is an arc fault circuit breaker.
It could be the sign of an impending treadmill problem.
Does the plug fit tight into the receptacle ?
Does the breaker trip when the treadmill is only in use or does it not have to be in use ?
It may be hard to tell as it may trip as soon as the treadmill is turned on.
You made to need to plug in a small table or floor lamp to see when the power goes off.
 
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Old 06-02-20, 10:55 AM
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Thanks, the plug fits nicely. I've only seen it happen when the treadmill has been running for at least a few minutes. It's an older treadmill, so I wouldn't be surprised if that was the issue. I'll put a lamp and see if that causes any issues to help isolate it. Thanks!
 
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Old 06-02-20, 11:18 AM
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If it only happens when the treadmill is running.... that pretty much points to it as the cause of the trip. It could be caused by something as simple as a switch or motor arcing.
 
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Old 06-02-20, 11:32 AM
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The plug on the end of the cord looks like it has been yanked. There could be a bad connection in there causes arc trip.
 
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Old 06-02-20, 12:07 PM
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It sounds like the treadmill is the issue then. I assume there is no quick fix or easy way to identify what's exactly causing the treadmill to force the breaker to trip by looking at the mechanics of it?
 
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Old 06-03-20, 07:30 AM
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Before I looked too hard at the treadmill I think I'd replace the plug on the end of the cord.
 
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