Why Your Furnace May Be Making These Noises

November 23, 2016

This is the time of year 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 fall heating tune-up, there are some issues that need to be examined. A major problem you may discover is your furnace making weird noises – check out these furnace noises you should never disregard.

Scraping Sound

If you hear a loud scratching sound that sounds like metal on metal, there is possibly something faulty with the blower wheel. If you hear a sound like this, power off your furnace ASAP and call Teays Valley Service Experts to inspect the furnace. There are a few things that could be wrong with the blower wheel. First, it could just be loose and if the piece is not too damaged, can be tightened. Second, it could be that the blower wheel is broken and needs to be replaced. Or third, it might be that the motor mount itself broke, causing the complete blower assembly to rattle uncontrollably. One of our service experts would be happy to come out and take a look, and get you back to the silent and comfortable home you have come to expect.

Loud Bang When Furnace Starts

If there is a loud bang when your furnace kicks on, there are a few things that could be occurring. Two general issues are a dirty furnace burner or ignitor. Extending and contracting air ducts can also cause loud booms after the heating blower turns on. A dirty furnace burner or ignitor could prevent 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 end up being a safety issue, especially if one of these small explosions caused the heat exchanger to crack. Not only could that cause a carbon monoxide leak, but you would also have to replace the heat exchanger, which could be very pricey.

The other trouble, extending and contracting air ducts, is a usual noise complaint for people with metal ducts. If your furnace is making the loud pop and it is caused by your air ducts, it could be a sign of undersized ducts, closed vents, or a clogged air filter. Teays Valley Service Experts is happy to set up an appointment to diagnose your issue and get your home back in shape for the winter. Also, this will also result in improved comfort as well.

Whining Noise

If you hear a high-pitched sound, it could be the blower motor is malfunctioning, the shaft bearings are in need of oil, or an issue with the blower belt. A seasonal furnace tune-up will help catch these issues before they become big problems so make sure you call us at 304-760-5088 and we’ll make sure your furnace is ready to keep you safe and comfortable all winter long.

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