Why Your Furnace May Be Making These Noises

November 23, 2016

It’s that time of year when homeowners start turning on their heaters to settle in for a frigid winter. Unfortunately, when some furnaces start up, especially if it hasn’t had a fall heating tune-up, there are some problems that need to be inspected. A big problem you may run into is your furnace making unusual noises – take a look at these furnace noises you should never disregard.

Scraping Sound

If you hear a loud scratching noise that sounds like metal on metal, there is possibly something faulty with the blower wheel. If you hear a noise like this, turn off your furnace immediately and call Calverley Service Experts to inspect the equipment. There are a few things that could be wrong with the blower wheel. First, it might 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 could be that the motor mount itself broke, causing the complete blower assembly to shake uncontrollably. One of our service professionals would be happy to come to your home and take a look, and get you back to the noiseless and comfortable home you have come to love.

Loud Bang When Furnace Starts

If there is a loud pop when your furnace turns on, there are a few things that could be happening. Two common things are a dirty furnace burner or ignitor. Extending and contracting air ducts can also create loud bangs after the heating blower turns on. A soiled furnace burner or ignitor could delay the burners from igniting, forcing gas to build up. When the gas finally ignites, it will create the loud pop you hear. This could result in a safety issue, especially if one of those small explosions caused the heat exchanger to break. Not only could that produce a carbon monoxide leak, but you would also have to replace the heat exchanger, which may be very pricey.

The other problem, extending and contracting air ducts, is a usual noise complaint for people with metal ducts. If your system is making the loud boom and it is a result of your air ducts, it could be an indication of undersized ducts, blocked vents, or a clogged air filter. Calverley Service Experts is happy to come out to diagnose your problem 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 whining noise, 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 system tune-up will help catch these issues before they become big problems so make sure you contact us at 817-380-5647 and we’ll make sure your heating system is ready to keep you safe and cozy all winter long.

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