The electrical panel, also known as the breaker box, is the central hub for distributing electricity throughout a home or building. It may need to be replaced if it is outdated, damaged, or unable to handle the electrical load of modern appliances and devices. Signs that a panel needs replacement include frequently tripping breakers, buzzing or crackling sounds, flickering lights, or signs of rust or corrosion. It's important to consult a licensed electrician to determine if a panel replacement is necessary for your specific situation.