Why Your Furnace May Be Making These Noises

Now is when homeowners start turning on their furnaces to settle in for a frigid winter. Unfortunately, when some furnaces start up, especially if it hasn’t received a yearly heating tune-up, there are some troubles that need to be examined. A serious problem you may run into is your furnace making unusual noises – read about these furnace noises you should never neglect. 

Scraping Sound 

If you hear a loud scraping racket that sounds like metal on metal, there is probably something defective with the blower wheel. If you hear a sound like this, shut off your furnace immediately and call Stevenson Service Experts to inspect the equipment. There are a couple things that could be amiss with the blower wheel. First, it could just be loose and if the part is not too harmed, can be tightened. Second, it could be that the blower wheel is broken and needs to be replaced. Or third, it could be that the motor mount itself broke, causing the complete blower assembly to vibrate uncontrollably. One of our service experts would be happy to come out and take a look, and get you back to the noiseless and cozy home you have come to adore. 

Loud Bang When Furnace Starts 

If there is a loud bang when your furnace kicks on, there are a few things that could be happening. Two common things are a dirty furnace burner or ignitor. Expanding and contracting air ducts can also cause loud bangs after the furnace blower comes on. A dirty furnace burner or ignitor could holdup the burners from igniting, resulting in gas to build up. When the gas does finally ignite, it will create the loud bang you hear. This could cause a safety issue, especially if one of the small explosions caused the heat exchanger to break. Not only could that produce a carbon monoxide leak, but you will have to replace the heat exchanger, which may be very costly. 

The other issue, extending and contracting air ducts, is a typical noise complaint for people with metal ducts. If your system is making the loud pop and it is produced by your air ducts, it could be an indication of undersized ducts, obstructed vents, or a clogged air filter. Stevenson Service Experts is happy to visit your home to diagnose your trouble and get your home back to order. Additionally, this will also give you improved comfort as well. 

Whining Noise 

If you hear a whining sound, it could be the blower belt, shaft bearings in need of oil, or even a malfunctioning blower motor. A seasonal heating tune-up will help catch these issues before they become serious problems so make sure you contact us at 614-334-3192 and we’ll make sure your heating equipment is ready to keep you safe and cozy all winter long. 

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