Electrical overloads occur when you draw more electricity than a circuit can handle. Because they present a potential fire hazard, it’s important that they are spotted quickly and dealt with as soon as possible. Some warning signs that you may have an overloaded electrical circuit include: Flickering or dimming lights. Circuit breakers frequently tripping. Buzzing sounds coming from outlets and switches. Scorch marks on outlets. Burning smells. Warm wall plates. If you notice any of these signs, you may need to consider a panel upgrade. A professional electrician can help you determine the best course of action for your home.