Why Your Furnace May Be Making These Noises

November 23, 2016

Now is when families start turning on their heaters to settle in for a frigid winter. Unfortunately, when some heating systems start up, especially if it hasn’t had a yearly heating tune-up, there are some problems that need to be assessed. A major problem you may discover is your furnace making weird noises – read about these furnace noises you should never ignore.

Scraping Sound

If you hear a loud raking sound that sounds like metal on metal, there is possibly something faulty with the blower wheel. If you hear a noise like this, shut off your furnace immediately and call A1 Chesney Service Experts to inspect the system. There are multiple things that could be faulty with the blower wheel. First, it could just be loose and if the piece is not too impaired, can be tightened. Second, it might be that the blower wheel is broken and will require replacement. Or third, it may be that the motor mount actually broke, causing the whole 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 quiet 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 couple things that could be occurring. Two general problems are a dirty furnace burner or ignitor. Expanding and contracting air ducts can also produce loud booms after the furnace blower comes on. A soiled furnace burner or ignitor could delay 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 end up being a safety issue, especially if one of these small explosions caused the heat exchanger to deteriorate. 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 issue, stretching and contracting air ducts, is a typical noise complaint for homeowners with metal ducts. If your equipment is making the loud bang and it is caused by your air ducts, it could be a symptom of undersized ducts, blocked vents, or a clogged air filter. A1 Chesney Service Experts is happy to set up an appointment to diagnose your trouble and get your home back to order. Ultimately, this will also result in improved comfort as well.

Whining Noise

If you hear a whining disturbance, it could be the blower belt, shaft bearings in need of oil, or even a malfunctioning blower motor. A seasonal furnace tune-up will help discover these issues before they become major problems so make sure you give us a call at 587-315-5271 and we’ll make sure your furnace is ready to keep you safe and warm all winter long.

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