Why Do My Lights Flicker?

Kalispell Electrician

Flickering lights in your home can be both annoying and concerning. Whether it’s a single bulb or multiple fixtures, it’s important to take steps to identify the cause of the problem. At Central Heating Cooling Plumbing Electrical, electrical safety is a top priority. Our electricians have put together an overview of the potential causes of flickering lights and possible solutions. In some cases you may be able to fix the problem on your own, while in other cases you may require an electrician to diagnose the cause and make repairs.

Common Causes of Flickering Lights

Loose Bulb
One of the most common reasons for flickering lights is a loose bulb. Ensure the bulb is securely screwed into the socket. If the flickering persists, try replacing the bulb with a new one.

Faulty Light Switch
Light switches that are worn out or damaged can cause flickering. Try flipping the switch on and off a few times to see if it improves. If not, you may need to replace the switch.

Voltage Fluctuations
Voltage fluctuations can occur when large appliances like refrigerators or air conditioners turn on, causing a temporary drop in voltage. If this is a frequent issue, you may need to install a dedicated circuit for high-power appliances or have an electrician assess your home’s electrical load.

Loose or Faulty Wiring
Loose wiring connections in the electrical panel or fixtures can cause intermittent flickering. This is a serious issue that requires immediate attention. Loose wiring can lead to electrical fires, so it’s best to call a professional electrician to inspect and repair the wiring.

Overloaded Circuit
An overloaded circuit happens when too many devices are drawing power from the same circuit. Reduce the number of devices plugged into the circuit. If the problem persists, an electrician can help by adding additional circuits or upgrading your electrical panel.

Dimmer Switches
Not all dimmer switches are compatible with LED bulbs, leading to flickering. Ensure that your dimmer switch is compatible with your light bulbs. Replacing either the switch or the bulbs may resolve the issue.

Faulty Ballast
In fluorescent lights, a faulty ballast can cause flickering. Replacing the ballast or the entire fixture may be necessary.

Utility Service Issues
Problems with the utility company’s service, such as damaged lines or equipment, can cause lights to flicker. Contact your utility company to report the issue. They can inspect and resolve problems on their end.

When to Call an Electrician

While some flickering light issues can be resolved easily, others require the expertise of a professional electrician. Here are scenarios when you should call Central Heating Cooling Plumbing Electrical:

Persistent Flickering
If the flickering continues despite trying the above solutions, it’s time for a professional assessment.

Electrical Odors or Sparks
Any burning smell, sparks, or unusual sounds from switches or outlets indicate a serious problem that needs immediate attention.

Frequent Circuit Breaker Trips
If your circuit breaker trips frequently, it may signal an overloaded circuit or a more significant electrical issue.

Old or Outdated Wiring
Homes with older wiring may be more prone to electrical problems, including flickering lights. Upgrading your wiring can improve safety and reliability.

Major Electrical Upgrades
For any significant electrical work, such as panel upgrades or new circuit installations, always rely on a licensed electrician.

If you have concerns about your home’s electrical system? Call the electricians at Central Heating Cooling Plumbing Electrical. We have been the Flathead Valley’s most trusted electrical company since 1993.

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