Lots of things in your home depend on electricity—from charging your phone to keeping the temperature inside where you want it. That’s why it’s frustrating when electricity in our homes doesn’t work the way we anticipate. For many homeowners, this stress can come to a head when lights flicker after their HVAC system starts to operate.
The question remains: Do dimming or flickering lights at the beginning of HVAC cycles indicate a serious electrical problem? It differs depending on the situation.
When are dimming or flickering lights considered usual?
If you’re noticing dimming that lasts for a fraction of a second when your HVAC starts, it likely isn’t something to be concerned 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 substantial 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, have less power available to them.
If this is the only issue you are facing, your lights should dim for less than a second and quickly return to full brightness. If you’re done with the flickering, schedule an appointment with Kilbourne Heating & AC. We’ll assess the situation and see if an equipment upgrade or circuit changes can solve the problem.
When should I worry about flickering lights?
Flickering lights can also point to a more serious matter. Don’t investigate yourself. The problem could be unsafe for you or your home. Reach out to a professional if you experience:
- Lights that continue to flicker. The normal flickering that takes place 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 continually at any other time—you could have a challenge with your wiring.
- Lights that dim drastically. When you experience typical dimming, the effect is enough that you notice a small, brief change. If the intensity of your lights abruptly drops considerably, you could have something wrong with the outdoor compressor on your air conditioner.
- A circuit breaker trip when you start your HVAC. Circuit breakers are a key part of your home’s electrical system. When they trip and shut off power to a part of your space (powered by a specific circuit), they are attempting to protect you from an issue with your circuit. While it might 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 a good idea to call a professional in to take a look. The team at Kilbourne Heating & AC is here to help. When you need us, you can give us a call at 561-287-7071 or make an appointment online. We’ll make sure everything is in order so your family can feel safe in your home.