The answer to 'circuit breaker buzzing noise' is that a buzzing or humming sound coming from a circuit breaker is typically a sign of an electrical issue that requires attention. This can be caused by a loose connection, overloaded circuit, or a problem with the breaker itself.
Some common symptoms of a buzzing circuit breaker include a loud humming or buzzing noise, flickering lights, or the breaker tripping frequently. If you notice these issues, it's important to address them promptly to prevent further damage or potential fire hazards. In many cases, the solution may be as simple as tightening the connections or resetting the breaker. However, if the problem persists or you're unsure of the cause, it's best to call in a licensed electrician to diagnose and resolve the issue.