Why Your Furnace May Be Making These Noises

November 23, 2016

This is the time of year families start turning on their heating systems to settle in for a cold winter. Unfortunately, when some heaters start up, especially if it hasn’t had a yearly heating tune-up, there are some issues that need to be examined. A major problem you may discover is your furnace making unusual noises – take a look at these furnace noises you should never ignore.

Scraping Sound

If you hear a loud raking noise that sounds like metal on metal, there is probably something defective with the blower wheel. If you hear a sound like this, power off your furnace ASAP and call Gordon's Service Experts to inspect the system. There are multiple things that could be wrong with the blower wheel. First, it could just be loose and if the component is not too harmed, can be tightened. Second, it may be that the blower wheel is broken and will require replacement. Or third, it may be that the motor mount itself broke, causing the entire blower assembly to shake uncontrollably. One of our service technicians would be happy to come to your home and take a look, and get you back to the silent and warm home you have come to adore.

Loud Bang When Furnace Starts

If there is a loud pop when your furnace kicks on, there are a couple things that could be happening. Two common problems are a dirty furnace burner or ignitor. Extending and contracting air ducts can also create loud sounds after the furnace blower comes on. A filthy furnace burner or ignitor could holdup the burners from igniting, forcing gas to build up. When the gas finally ignites, it will create the loud pop you hear. This could cause a safety issue, especially if one of these small explosions caused the heat exchanger to crack. Not only could that produce a carbon monoxide leak, but you’d end up having to replace the heat exchanger, which may be very pricey.

The other problem, expanding and contracting air ducts, is a usual noise complaint for homeowners with metal ducts. If your system is making the loud boom and it is a result of your air ducts, it could be a sign of undersized ducts, blocked vents, or a clogged air filter. Gordon's Service Experts is happy to set up an appointment to diagnose your trouble and get your home back in shape for the winter. Ultimately, this will also provide improved comfort as well.

Whining Noise

If you hear a high-pitched sound, 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 furnace tune-up will help catch these issues before they become serious problems so make sure you call us at 405-432-2197 and we’ll make sure your heating equipment is ready to keep you safe and warm all winter long.

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