Blog

Why Your Furnace May Be Making These Noises

Published on
Why Your Furnace Is Making Weird Noises 617

Now is when families start turning on their furnaces to settle in for a long winter. Unfortunately, when some heating systems start up, especially if it hasn’t undergone a yearly heating tune-up, there are some problems that need to be examined. A major problem you may discover is your furnace making unusual noises – take a look at these furnace noises you should never ignore.

Scraping Sound

If you hear a loud scraping sound that sounds like metal on metal, there is probably something faulty with the blower wheel. If you hear a sound like this, turn off your furnace immediately and call Service Experts Heating & Air Conditioning to inspect the furnace. There are multiple things that could be wrong with the blower wheel. First, it might just be loose and if the piece is not too harmed, can be tightened. Second, it might be that the blower wheel is broken and will require replacement. Or third, it might be that the motor mount is what broke, causing the complete blower assembly to shake uncontrollably. One of our service experts would be happy to come out and take a look, and get you back to the silent and cozy home you have come to expect.

Loud Bang When Furnace Starts

If there is a loud pop when your furnace kicks on, there are a few things that could be going on. Two typical things are a dirty furnace burner or ignitor. Expanding and contracting air ducts can also create loud bangs after the heating system blower starts up. A dirty furnace burner or ignitor could holdup the burners from igniting, causing gas to build up. When the gas finally does ignite, it will create the loud bang you hear. This could result in a safety issue, especially if one of these small explosions caused the heat exchanger to crack. Not only could that result in a carbon monoxide leak, but you’d end up having to replace the heat exchanger, which could be very pricey.

The other problem, extending and contracting air ducts, is a usual noise complaint for homeowners with metal ducts. If your furnace is making the loud boom and it is produced by your air ducts, it could be a sign of undersized ducts, obstructed vents, or a clogged air filter. Service Experts Heating & Air Conditioning is happy to set up an appointment to diagnose your problem and get your home back in working order. Also, this will also give you improved comfort as well.

Whining Noise

If you hear a high-pitched noise, it could be the shaft bearings are in need of oil, there is an issue with the blower belt, or the blower motor is malfunctioning. A seasonal furnace tune-up will help discover these issues before they become big problems so make sure you contact us at 866-397-3787 and we’ll make sure your heating equipment is ready to keep you safe and cozy all winter long.

The Cost of Home Insulation
How Often You Should Replace Your Furnace