The answer to 'electrical panel buzzing noise' is that a buzzing sound coming from your electrical panel is often a sign of an issue that requires professional attention. This can be caused by loose connections, overloaded circuits, or problems with the panel itself.
Some common symptoms include a loud humming or buzzing noise, flickering lights, or breakers tripping frequently. While it's important to investigate the cause, attempting to repair the electrical panel yourself can be extremely dangerous and is not recommended. Calling a licensed electrician is the safest way to diagnose and fix the problem.