Why Your Furnace May Be Making These Noises

November 23, 2016

This is the time of year homeowners start turning on their heating systems to settle in for a cold winter. Unfortunately, when some heaters start up, especially if it hasn’t undergone a yearly heating tune-up, there are some issues that need to be inspected. A major problem you may run into is your furnace making weird noises – check out these furnace noises you should never neglect.

Scraping Sound

If you hear a loud scratching noise that sounds like metal on metal, there is probably something faulty with the blower wheel. If you hear a sound like this, power off your furnace immediately and call Roy Inch & Sons Service Experts Heating & Air Conditioning to inspect the equipment. There are a couple things that could be faulty with the blower wheel. First, it could just be loose and if the component is not too damaged, can be tightened. Second, it may be that the blower wheel is broken and needs to be replaced. Or third, it may be that the motor mount actually broke, causing the whole blower assembly to shake uncontrollably. One of our service professionals would be happy to come over and take a look, and get you back to the noiseless and cozy home you have come to expect.

Loud Bang When Furnace Starts

If there is a loud bang when your furnace turns on, there are a few things that could be going on. Two general problems are a dirty furnace burner or ignitor. Extending and contracting air ducts can also produce loud noises after the heating system blower starts up. A dirty furnace burner or ignitor could holdup the burners from igniting, forcing gas to build up. When the gas finally does ignite, it will create the loud pop 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 cause a carbon monoxide leak, but you’d end up having to replace the heat exchanger, which can be very expensive.

The other trouble, extending and contracting air ducts, is a common noise complaint for people with metal ducts. If your equipment is making the loud boom and it is produced by your air ducts, it could be an indication of undersized ducts, blocked vents, or a clogged air filter. Roy Inch & Sons Service Experts Heating & Air Conditioning is happy to set up an appointment to diagnose your problem and get your home back in shape for the winter. Also, this will also give you improved comfort as well.

Whining Noise

If you hear a squealing 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. An annual heating tune-up will help catch these issues before they become big problems so make sure you give us a call at 226-270-1164 and we’ll make sure your heating system is ready to keep you safe and comfortable all winter long.

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