I live in a house that is just over 30 years old. A couple of years ago we started experiencing an intermittent flickering light condition on just one 15 amp circuit. It is a very subtle flicker. At first, you're not sure it flickered or you just blinked. Any light, whether switched or plugged into a receptacle on that circuit, flickers.
After checking all connections on that circuit and making sure that it is not over loaded, I went to the sub-panel and checked the tightness of the connections. I was preparing to replace the breaker when I discovered that pulling the breaker and putting it back solved the problem.
Since that time, the same thing has occurred on the same circuit two additional times at intervals of several months. Each time, pulling the breaker and putting it back has corrected the flickering. The problem has not occurred on any other circuit.
Does anyone know what causes this and is there anything that will prevent it?
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