While it is normal for your furnace to make some sounds when it is running, some unusual or very loud noises could indicate that something is wrong with the system. If you do not do something about these sounds early, they could result in expensive repairs or, in some cases, a complete breakdown of your heating system.

Below, this heating repair contractor in Villa Park, Illinois is going to explore some of the most common noises that your furnace might make.

Banging or booming sounds

If you hear a loud bang or boom when your furnace starts, it could indicate a delay in ignition. This happens when gas builds up inside the combustion chamber and then ignites all at once, causing a small explosion inside the furnace. This situation is sometimes called a gas furnace backfire and can be dangerous if not fixed quickly.

One of the most common reasons for this problem is dirt and dust on the burners, which prevents them from igniting properly. Another possible cause is an issue with the ignition system itself. Since this can become a serious safety risk, it is best to have a professional check your furnace to clean the burners and fix any ignition problems before they get worse.

Whistling or high-pitched noises

A whistling sound coming from your furnace usually indicates restricted airflow. Common causes include clogged air filters, closed or blocked vents, and ductwork issues. To fix this problem, you should check your air filters and clean or replace them if they are dirty. You should also make sure that all the vents in your home are open and not blocked by furniture or other objects.

If the whistling sound continues even after you do these things, it could be a deeper issue with the ductwork. In that case, it is best to have a knowledgeable heating repair contractor in Villa Park, Illinois inspect your system and find out what’s wrong.

Rattling or vibrating noises

If you hear a rattling noise coming from your furnace, it could mean that some parts inside the system are loose. Over time, the movement of an operating furnace can cause screws, panels, and other small parts to come loose. When this happens, these parts can shake and make a rattling or vibrating noise.

If you hear this sound, try tightening any visible screws and see if that helps. But if the noise does not stop, there could be a bigger problem, like a failing blower motor or ductwork that is not secured properly. If the rattling continues, it is best to call a professional heating repair contractor to check the system. 

Squealing or screeching sounds

A high-pitched squeal or screeching sound from your furnace is usually a sign that something is wrong with the blower motor. One possible cause is a worn-out or misaligned blower belt, which helps the motor run properly. Another possible cause is that the motor bearings are not working correctly.

If the blower belt is damaged, the furnace might not be able to distribute warm air effectively throughout your home. If the bearings are the problem, they can cause more damage to the motor if they are not fixed. It is best to have a professional heating repair contractor in Villa Park, Illinois inspect the furnace to prevent bigger problems. They can check the belt, replace it if necessary, and make sure the motor bearings are properly lubricated.

Looking for a Heating Repair Contractor in Villa Park, Illinois?

Are you searching for a heating expert that can keep your furnace running smoothly? If so, and if you’re ready to partner with the best heating repair contractor in Villa Park, Illinois, Hearthstone Heating & Air Conditioning is the top choice. Contact us at (630) 435-9800 to schedule service.