If you’ve noticed your lights flickering at home, it might feel like a small inconvenience — but it could point to something much bigger happening in your electrical system.
At Electrical Insight, serving the greater Escondido and San Diego area, we want homeowners to know when a flicker is just a loose bulb — and when it’s a red flag that calls for professional attention.
Let’s walk through the most common causes and what you should do next.
Minor Flickering? Try These Quick Fixes First
Sometimes flickering lights are nothing more than a small hiccup that you can resolve on your own.
1. Loose Bulb
If a light only flickers occasionally or when you bump the fixture, it could be a loose connection. Switch the light off, let the bulb cool, and carefully tighten it.
2. Bulb Type
Fluorescent bulbs are known to flicker during warm-up, and even some LEDs may act up if they’re low quality or incompatible with your fixtures.
Tip: Stick with high-quality, brand-name LEDs and make sure they match your fixture’s requirements.
3. Dimmer Switch Issues
Using a dimmer switch with non-dimmable LEDs? That’s a recipe for flickering. LED-compatible dimmers — or smart bulbs that don’t require dimmers — can fix this fast.
4. Loose Plug
If you’re dealing with a flickering lamp, check the plug. Loose or bent prongs can lead to poor electrical contact. Unplug it, inspect the prongs, and ensure the fit is snug in the outlet.
Still Flickering? It Might Be a Serious Electrical Issue
If lights flicker across multiple rooms or persist even after you’ve tried the quick fixes, the problem could be deeper within your home’s electrical system.
This is especially common during seasonal transitions, like spring into early summer, when people begin using fans, AC units, and other high-powered appliances more often.
5. Overloaded Circuit
When flickering starts every time the microwave, HVAC, or washer kicks on, your system might be over capacity. Modern homes have more electronics than ever — and older wiring may struggle to keep up.
Sign to watch for: Lights dim noticeably when large appliances run.
6. Power Grid Issues
In parts of San Diego County, especially where homes share transformers, nearby electrical demand can impact your supply. If your neighbors are using heavy loads, your lights might flicker.
7. Voltage Irregularities
Your home should maintain voltage between 115–125 volts. Anything higher — or rapid shifts — can damage devices and overheat wires.
Signs of voltage problems:
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Random dimming or brightening
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Bulbs burning out faster than usual
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Appliances shutting off or restarting unexpectedly
Use a voltmeter if you have one, or call in a pro from Electrical Insight to test your panel.
8. Old or Faulty Wiring
Wiring problems are common in older Escondido and North County homes. Wires degrade over time, and even minor damage can create dangerous conditions.
Reminder: The National Fire Protection Association reports that wiring issues are a leading cause of residential fires in the U.S. — don’t take chances.
9. Electrical Arcing
Arcing happens when current jumps across a poor connection, producing intense heat — often over 10,000°F — and posing a major fire hazard.
You won’t see or hear every arc, but if you suspect damaged wiring, flickering lights may be your first warning sign.
10. Main Service Panel Problems
If flickering is widespread, your main electrical panel or service cable could be to blame. Loose lugs or corroded connections can disrupt power throughout the home.
Leave the panel closed — only a licensed electrician should inspect or service it.
When Should You Be Concerned About Flickering Lights?
If any of the following apply, it’s time to call a professional:
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The flickering is frequent or gets worse over time
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It affects multiple rooms or circuits
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Lights dim noticeably when appliances start
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You hear buzzing or smell burning
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Your home hasn’t had an electrical inspection in years
Don’t ignore the signs. A small issue today can quickly turn into a hazardous situation tomorrow.
Your Trusted Local Electrician in San Diego & Escondido
At Electrical Insight, we specialize in residential electrical diagnostics, repairs, and safety inspections. If flickering lights have become the norm in your home, we’ll get to the bottom of it — safely and efficiently.
From newer homes in San Marcos to charming vintage houses in Escondido, our team is trained to handle systems of all ages and styles. We’ll identify the root cause and give you a clear, honest plan to fix it.
Schedule an Inspection Today
Whether you’re dealing with a flickering fixture or need a full-home electrical safety check, Electrical Insight is here to help. Contact us today!
