The answer to 'generator buzzing noise' is that a buzzing noise from a generator is often caused by a problem with the generator's alternator or voltage regulator. This can be due to issues like worn brushes, loose connections, or a failing alternator. Symptoms may include flickering or dimming lights, reduced power output, and an audible buzzing or humming noise.
In many cases, a buzzing generator can be repaired by a qualified electrician or generator technician. They can diagnose the issue, replace any faulty components, and ensure the generator is operating safely and efficiently. DIY repairs are generally not recommended for generators, as they require specialized knowledge and tools to service properly.