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 received a fall heating tune-up, there are some problems that need to be assessed. A major problem you may discover is your furnace making unusual noises – check out these furnace noises you should never disregard.

Scraping Sound

If you hear a loud scraping racket that sounds like metal on metal, there is possibly something faulty with the blower wheel. If you hear something like this, turn off your furnace right away and call D & K Heating Service Experts to inspect the equipment. 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 harmed, can be tightened. Second, it might be that the blower wheel is broken and in need of replacement. Or third, it may be that the motor mount is what broke, causing the whole blower assembly to rattle uncontrollably. One of our service technicians would be happy to come over and take a look, and get you back to the silent and comfortable home you have come to adore.

Loud Bang When Furnace Starts

If there is a loud bang when your furnace comes on, there are a few things that could be happening. Two typical problems are a dirty furnace burner or ignitor. Expanding and contracting air ducts can also produce loud sounds after the furnace blower comes on. A filthy furnace burner or ignitor could prevent 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 those small explosions caused the heat exchanger to break. Not only could that cause a carbon monoxide leak, but you will have to replace the heat exchanger, which may be very costly.

The other trouble, expanding 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 caused by your air ducts, it could be a sign of undersized ducts, blocked vents, or a clogged air filter. D & K Heating Service Experts is happy to set up an appointment to diagnose your problem and get your home back in working order. Also, this will also result in 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 routine furnace tune-up will help catch these issues before they become major problems so make sure you contact us at 613-707-2421 and we’ll make sure your heating system is ready to keep you safe and warm all winter long.

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