Quote:
Originally Posted by mikehinton
Pretty sure it's just a circuit breaker, as only one is affected in the sub panel. I agree that the process is to start disconnecting the branches on the circuit one by one until it stops misbehaving. That process will begin tonight...  |
If you can "hear" arcing noise from somewhere in your shop I doubt it is a bad breaker, Substitute a known good breaker (of same amp rating) from another circuit and see if the problem moves with the breaker.
I had a similar situation develop with a circ running my compressor It would spark once in a while and pop a breaker. Turned out to be a piched wire behind it which only shorted to the compressor when running (and vibrating)