Frequent tripping of circuit breakers or blowing of fuses
2. Flickering or dimming lights
3. Overheating outlets or switches
4. Discolored or charred outlets or switches
5. Outlets without grounding
6. Lack of electrical outlets
7. Knob-and-tube or aluminum wiring
If you notice any of these signs, it is advisable to consult a licensed electrician for a thorough inspection of your electrical system.