Flickering lights might seem like a minor annoyance, but they can actually be a sign of a more serious electrical issue in your home. Whether it’s a single bulb that flickers occasionally or your entire home lighting up like a haunted house, understanding the root cause is essential—not just for peace of mind, but for your safety.
Let’s break down the most common reasons lights flicker and what you can do to fix them.
1. Loose Bulbs or Fixtures
Problem:
Sometimes, the issue is as simple as a loose bulb. When the bulb isn’t screwed in all the way, the electrical connection is unstable, which causes the flicker.
Solution:
Turn off the light and let the bulb cool. Then gently twist it to ensure it’s secure. If the flickering continues, swap it out for a new bulb to rule out a faulty one.
2. Faulty Light Switch or Dimmer
Problem:
Dimmer switches can cause LED or CFL bulbs to flicker if they’re not compatible. Alternatively, a worn-out or loose switch can interrupt the electrical current.
Solution:
Check the compatibility of your dimmer switch with the type of bulb you’re using. If the flickering happens when you touch or jiggle the switch, it might need replacing. An electrician can confirm and install a new one safely.
3. Voltage Fluctuations
Problem:
When your lights flicker every time a major appliance (like a fridge or HVAC system) kicks on, it could mean your home’s electrical system is overloaded or experiencing voltage drops.
Solution:
Have a licensed electrician measure your home’s voltage. If it consistently falls outside the normal range (typically 115 to 125 volts), your system may need an upgrade or redistribution of electrical loads.
4. Worn or Faulty Wiring
Problem:
Outdated or deteriorating wiring can cause intermittent connections, leading to flickering lights—and more seriously, an increased risk of electrical fires.
Warning signs include:
- Burning smells near outlets or switches
- Buzzing or crackling sounds
- Scorch marks or warm wall plates
Solution:
This is not a DIY situation. Call a licensed electrician immediately to inspect your wiring. A professional inspection will identify whether rewiring or replacement of specific components is necessary.
5. Utility Service Issues
Problem:
If your neighbors are also experiencing flickering lights, the issue could be with your local utility company’s equipment, such as the transformer supplying your area.
Solution:
Call your electric provider to report the issue. They can test the supply line and resolve problems on their end.
6. Panel or Breaker Problems
Problem:
A loose breaker or a failing electrical panel can disrupt the flow of electricity, causing flickering lights throughout the home.
Solution:
Have a certified electrician or home inspector examine your panel for signs of wear, corrosion, or loose breakers. In some cases, a full panel replacement may be required.
How a Home Inspection Can Help
If you’re experiencing ongoing flickering and you’re not sure why, a professional home inspection can help identify the source of the problem. At [Your Company Name], our inspectors are trained to spot warning signs of electrical issues—whether it’s outdated wiring, overloaded circuits, or hidden damage.
Remember: What seems like a minor flicker could be an early warning sign of a serious electrical hazard. Don’t ignore it.
Need help diagnosing electrical issues?
Contact Nordic today to schedule a full home inspection. We’ll give you peace of mind—and keep your lights on for good.