The answer to 'electrical panel making buzzing noise' is that a buzzing noise coming from your electrical panel is usually a sign of an electrical issue that needs to be addressed. This can be caused by loose connections, overloaded circuits, or other problems within the panel.
Some common causes of a buzzing electrical panel include: 1) Loose connections - Over time, connections in the panel can become loose, causing arcing and buzzing. 2) Overloaded circuits - If too many high-draw appliances or devices are connected to the same circuit, it can overload the panel and cause buzzing. 3) Failing components - Aging or failing breakers, wiring, or other panel components can also lead to a buzzing noise.