Many things in your home depend on electricity—from charging your cell phone to keeping the temperature inside where you want it. That’s why it’s annoying when electricity in our homes doesn’t work the way we expect. For many homeowners, this stress can come to a head when lights flicker after their air conditioning or heating system starts to kick in.
The question remains: Do dimming or flickering lights at the beginning of HVAC cycles signify a serious electrical problem? It varies.
When are dimming or flickering lights considered common?
If you’re experiencing dimming that lasts for a fraction of a second when your HVAC begins, it likely isn’t something to be worried about.
While it might not feel like it, your home has a regulated amount of electricity it can use at any given time. Large appliances—like your HVAC system—need a significant amount of electricity to start up. When those appliances turn on, they consume a larger amount of the available electricity. This means the other appliances in your home, like your lights, don’t have as much power available to them.
If this is the single issue you are facing, your lights should dim for less than a second and quickly return to full brightness. If you’re irritated by the flickering, schedule an appointment with Taylor's Heating & Air Conditioning. We’ll assess the situation and see if an equipment upgrade or circuit changes can solve the problem.
When should I be concerned about flickering lights?
Flickering lights can also signify a more serious matter. Don’t investigate yourself. The problem could be dangerous for you or your home. Call a professional if you notice:
- Lights that continue to flicker. The normal flickering that happens when there isn’t enough power to support all appliances in your home should last a fraction of a second. If your lights continue to flicker on and off when you start your HVAC system—or consistently at any other time—you could have an issue with your wiring.
- Lights that dim significantly. When you experience usual dimming, the effect is enough that you notice a small, brief change. If the intensity of your lights unexpectedly drops considerably, you may have something wrong with the outdoor compressor on your air conditioner.
- A circuit breaker trip when you start your HVAC. Circuit breakers are an essential part of your home’s electrical system. When they trip and shut off power to a section of your home (powered by a specific circuit), they are attempting to protect you from a problem with your circuit. While it could be that you have too many appliances on the same circuit, it’s best to bring a professional in to check that there isn’t a more serious problem.
Any time your HVAC system and lights don’t work together, it’s safe to call a technician in to take a look. The team at Taylor's Heating & Air Conditioning is here to provide support. When you need us, you can give us a call at 519-296-4437 or schedule an appointment online. We’ll make sure everything is in order so you can feel safe in your home.