The answer to 'circuit breaker making 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, worn components, or an overloaded circuit.
If you hear a buzzing noise from a circuit breaker, first check to see if the breaker is tripping or if there are any visible signs of damage. If the breaker is not tripping, you may be able to resolve the issue by tightening the connections or replacing the breaker. However, if the problem persists or you're not comfortable working with electrical systems, it's best to call a licensed electrician to diagnose and fix the issue.