Why Do the Lights Flicker When the AC Comes On?: 1 Minute to Understand this Common Issue

If you've ever noticed that your lights flicker when the AC comes on, you're not alone. This common occurrence can be bothersome and may raise concerns about your electrical system. Understanding the underlying causes can help you address the issue effectively.

Firstly, when your air conditioning unit starts up, it draws a significant amount of power to get the cooling process underway. This sudden surge of electricity can momentarily drain power from the circuits that also supply your lights, causing them to flicker. This phenomenon is known as voltage drop.

Another reason for flickering lights could be due to an overloaded circuit. If your electrical panel is outdated or lacks sufficient capacity to handle the combined load of your AC and other appliances, it can lead to voltage fluctuations.

Tips to Reduce Flickering Lights

1. **Upgrade Your Electrical System:** If your system is outdated, consider upgrading your electrical panel or circuits to accommodate higher loads.

2. **Use a Dedicated Circuit for AC:** This can help minimize the impact on other appliances when the AC starts.

3. **Check for Loose Connections:** Ensure all electrical connections are secure; loose wiring can exacerbate flickering issues.

FAQ

Q: Is it normal for lights to flicker occasionally?

A: While occasional flickering isn't unusual, frequent flickering may indicate larger electrical issues that should be addressed.

Q: What should I do if my lights flicker constantly when the AC runs?

A: It's advisable to consult a licensed electrician to evaluate your electrical system and prevent potential hazards.