The answer to 'circuit breaker buzzing noise' is a common issue that can be caused by several factors. A buzzing or humming sound from a circuit breaker usually indicates an electrical problem that requires prompt attention. This could be due to a loose connection, overloaded circuit, or a faulty breaker.
If you hear a buzzing noise from a circuit breaker, it's important to investigate the issue right away. First, try resetting the breaker to see if that resolves the problem. If the buzzing persists, it may be a sign of a more serious electrical issue that should be addressed by a licensed electrician. Continuing to operate a buzzing breaker can lead to further damage or even a fire hazard, so it's best not to ignore this warning sign.