My Lights Are Flickering, What’s the Problem?

Flickering lights are a common issue in many households and can range from minor to serious electrical problems. Understanding the possible causes can help prevent safety hazards and protect your home from potential electrical damage.

Loose or Faulty Light Bulbs

A loose or improperly installed light bulb is one of the most straightforward causes of flickering lights. When the bulb doesn’t make proper contact with the socket, it receives an inconsistent power supply, leading to flickering. Simply tightening the bulb can often fix the issue. If the flickering persists, the bulb might be defective and require replacement​.

Incompatible Bulbs or Dimmer Switches

Incompatibility between certain types of bulbs and dimmer switches is another common reason for flickering lights. This is especially true with LED bulbs and older dimmer switches that are not designed for low-voltage lighting. In this case, you may need to replace either the bulb with a dimmable one or upgrade the dimmer switch to one compatible with modern LED lights​.

Voltage Fluctuations

Flickering lights may also be caused by voltage fluctuations in your home’s electrical system. Large appliances, such as refrigerators or air conditioners, can cause a temporary dip in voltage when they start up, leading to brief flickers. However, persistent flickering, especially when appliances are not in use, could indicate a more serious issue with your electrical panel or wiring. Voltage fluctuations can lead to damage to appliances and pose fire hazards, requiring the attention of a licensed electrician.

Overloaded Circuits

If you notice flickering lights when turning on high-powered appliances, it may be a sign of an overloaded circuit. Older homes with outdated wiring systems are particularly prone to this issue, as their circuits may not be equipped to handle modern electrical demands. Overloaded circuits can cause overheating and even fires, making it essential to address the problem promptly​.

Faulty Wiring or Electrical Components

Old or deteriorating wiring is another potential cause of flickering lights. Loose or damaged wires can cause intermittent power disruptions, leading to flickering. This is a serious issue that can result in electrical arcing, where electricity jumps between connections, which can spark fires. If faulty wiring is the cause, you should contact a professional electrician to inspect and replace the affected wiring​.

Utility Service Issues

In some cases, the flickering may not be an issue within your home but rather with your utility provider. If you and your neighbors experience similar flickering lights, it could be due to problems with the utility company’s infrastructure. Contacting your electricity provider can help determine if this is the root cause.

Flickering lights can be caused by anything from a simple loose bulb to serious electrical problems. While minor issues can be easily resolved, persistent or widespread flickering requires professional attention. If in doubt, it is always safer to contact a licensed electrician to assess and fix the problem. Colony Electrical can help assess and address not only simple challenges but also provide solutions to complex electrical problems.