You should call a licensed electrician immediately if you have performed basic troubleshooting (like tightening bulbs or replacing switches) and the flickering persists. While minor issues can often be handled by homeowners, several specific warning signs indicate a serious electrical hazard that requires professional intervention.
Contact an electrician if you experience any of the following:
- Dangerous Warning Signs: If the flickering is accompanied by a burning smell, buzzing sounds from outlets or the electrical panel, sparks, or switch plates that feel unusually warm to the touch.
- Widespread Issues: If lights are flickering in multiple rooms simultaneously, or if you notice some lights dimming while others brighten. This often points to a loose service neutral connection, a hazardous condition that can cause fire or damage sensitive electronics.
- Circuit Overload Symptoms: If lights dim significantly whenever a large appliance (like an air conditioner, refrigerator, or dishwasher) cycles on. This indicates an overloaded electrical circuit that may need a load calculation or a panel upgrade.
- Frequent Breaker Trips: If your circuit breakers trip regularly in conjunction with flickering lights.
- Persistent Random Flickering: If the flickering occurs randomly without an obvious cause, such as a major motor starting up, it may signal hidden wiring problems that pose a fire risk.
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