Did you know that HVAC systems are responsible for over half of the energy consumption in the average American home? That’s a lot of work for one system to handle, and with all that work comes some noise. But how do you know when those HVAC noises are normal and when they’re a sign of a bigger problem? 

Don’t worry, we’ve got you covered. In this article, we’ll help you differentiate between normal HVAC noises and warning signs that your system may need repair near you.

Normal HVAC Noises

Your HVAC system is designed to make some noise as it operates. Here are some normal HVAC noises you may hear:

Humming

You may hear a low humming sound coming from your air conditioning unit or furnace. This is usually the sound of the fan motor running and is nothing to worry about.

Clicking

When your system turns on and off, you may hear a clicking sound. This is the sound of the thermostat relays activating and is also normal.

Airflow

When your system is running, you’ll hear the sound of air moving through the ducts. This is normal and varies depending on the size of your system and the design of your ductwork.

Unusual HVAC Noises

If you hear any of these unusual HVAC noises, it’s important to have your system inspected by a professional:

  • A banging or clanging sound coming from your furnace may indicate a problem with the blower wheel, motor, or belt
  • If you hear a rattling sound, it could be due to loose ductwork or a loose component inside your system
  • A screeching sound may be a sign that the blower motor or fan belt is failing
  • A hissing sound could indicate a refrigerant leak or a problem with your ductwork
  • If you hear a high-pitched squealing sound, it could be due to a problem with the blower motor or fan belt

What To Do If You Hear Unusual HVAC Noises

If you hear any of these unusual HVAC noises, it’s important to take action:

Turn Off Your System

If you hear any unusual noises, turn off your HVAC system immediately. This will prevent further damage to your system and keep you safe.

Call For Professional Help

Contact a professional HVAC technician in Fisher, IN for AC or furnace repair. They will be able to diagnose the problem and provide you with a free furnace estimate or AC repair free estimate.

Don’t Attempt DIY Repairs

HVAC systems are complex and dangerous. Don’t attempt to repair your system yourself, as this can result in injury or further damage to your system.

Don’t Let HVAC Noises Keep You Up At Night

Being able to differentiate between normal HVAC noises and warning signs can save you time, money, and stress. Remember, regular maintenance and cleaning of your HVAC system can prevent many of the problems that cause those unwanted HVAC noises. 

If you do suspect that your system needs repair, don’t wait until it’s too late. Don’t hesitate to contact us at Lasting Comfort Solutions Heating & Cooling with any questions or for help with your HVAC issues.