In Phoenix, the hottest part of the day isn’t just hard on you — it’s tough on your home’s electrical system too.

If you’ve noticed your lights flicker or dim in the late afternoon, especially during the summer, it’s not just an annoyance. It’s a sign something in your electrical setup needs attention.

At The Wire Guy Electric, we get dozens of service calls every summer about this exact issue. Here’s what causes it — and how you can fix it before it becomes a bigger, more expensive problem.

Common Causes of Afternoon Light Flicker in Phoenix

1. High Power Demand During Peak Heat

When Phoenix hits 110°F+, your AC, pool pump, and appliances all run at maximum power. This puts extra strain on your circuits, sometimes causing voltage drops that make your lights dim.

2. Loose or Aging Wiring

Extreme Arizona heat makes metal expand and contract. Over time, this movement can loosen electrical connections, leading to intermittent power loss and flickering.

3. Overloaded Circuits

Running multiple heavy-duty appliances (AC, laundry machines, ovens) on the same circuit can cause flicker. This is especially common in older homes not designed for modern electrical demands.

4. Utility Voltage Fluctuations

During peak summer demand, the local utility grid can experience slight voltage drops across entire neighborhoods, leading to temporary dimming.

When Flickering is a Serious Warning Sign

Occasional flicker during extreme load is common, but call a licensed electrician if you notice:

• Lights flickering throughout the entire home, not just one room
• Burning smells near outlets or your breaker panel
• Warm or discolored outlet covers
• Flickering that happens even when major appliances are off
  

These can indicate dangerous wiring issues or failing electrical components.

How to Fix Afternoon Light Flicker

1. Have an Electrician Inspect and Tighten Connections

A professional can safely check your wiring, breaker panel, and connections to eliminate loose points that cause flicker.

2. Upgrade to a Modern Electrical Panel

Older panels may not be able to handle Phoenix’s peak summer loads. A panel upgrade ensures your home can safely power all your appliances.

3. Add Dedicated Circuits

Running high-demand appliances on separate circuits reduces the chance of voltage drops and flicker.

4. Install Whole-Home Surge Protection

This protects your electrical system from power surges caused by utility fluctuations and monsoon lightning strikes.

The Bottom Line

In Phoenix, afternoon light flicker is more than just a quirk of the summer heat — it’s a clue that your home’s electrical system is under stress.

The Wire Guy Electric can diagnose the cause and fix it fast, so your home stays safe, cool, and fully powered.

Call The Wire Guy Electric Today

📞 (602) 769-7892

🌐 thewireguyelectric.com