Why Your Furnace May Be Making These Noises

November 23, 2016

Now is when homeowners 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 seasonal heating tune-up, there are some problems that need to be inspected. A big problem you may run into is your furnace making funny noises – take a look at these furnace noises you should never neglect.

Scraping Sound

If you hear a loud scratching noise that sounds like metal on metal, there is likely something faulty with the blower wheel. If you hear a noise like this, power off your furnace immediately and call Parker Pearce Service Experts to inspect the equipment. There are a couple things that could be amiss with the blower wheel. First, it may just be loose and if the component is not too damaged, 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 is what broke, causing the complete blower assembly to shake uncontrollably. One of our service professionals would be happy to come over 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 going on. Two typical things are a dirty furnace burner or ignitor. Stretching and contracting air ducts can also create loud noises after the heating blower turns on. A filthy furnace burner or ignitor could holdup the burners from igniting, forcing gas to build up. When the gas finally does ignite, it will create the loud boom you hear. This could result in 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 will have to replace the heat exchanger, which can be very pricey.

The other problem, expanding and contracting air ducts, is a usual noise complaint for people with metal ducts. If your equipment is making the loud pop and it is produced by your air ducts, it could be a symptom of undersized ducts, closed vents, or a clogged air filter. Parker Pearce Service Experts is happy to come out to diagnose your problem and get your home back in working order. Additionally, this will also provide improved comfort as well.

Whining Noise

If you hear a whining 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. A seasonal system tune-up will help discover these issues before they become serious problems so make sure you give us a call at 301-476-4577 and we’ll make sure your heating system is ready to keep you safe and warm all winter long.

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