Duct Cleaning

Why Your Furnace May Be Making These Noises

November 23, 2016

It’s that time of year when homeowners start turning on their furnaces to settle in for a long winter. Unfortunately, when some heaters start up, especially if it hasn’t undergone a yearly heating tune-up, there are some issues that need to be examined. A major problem you may encounter is your furnace making unusual noises – check out these furnace noises you should never ignore.

Scraping Sound

If you hear a loud scratching noise that sounds like metal on metal, there is likely something wrong with the blower wheel. If you hear a noise like this, power off your furnace immediately and call Service Experts Heating & Air Conditioning to inspect the equipment. There are multiple things that could be faulty with the blower wheel. First, it might just be loose and if the part is not too damaged, can be tightened. Second, it may be that the blower wheel is broken and needs to be replaced. Or third, it could be that the motor mount itself broke, causing the complete blower assembly to rattle 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 happening. Two general problems are a dirty furnace burner or ignitor. Stretching and contracting air ducts can also cause loud booms after the furnace blower comes on. A filthy furnace burner or ignitor could holdup the burners from igniting, resulting in gas to build up. When the gas finally ignites, 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 deteriorate. Not only could that produce a carbon monoxide leak, but you will have to replace the heat exchanger, which may be very pricey.

The other issue, stretching and contracting air ducts, is a typical noise complaint for homes with metal ducts. If your equipment is making the loud bang and it is caused by your air ducts, it could be a sign of undersized ducts, blocked vents, or a clogged air filter. Service Experts Heating & Air Conditioning is happy to come out to diagnose your trouble and get your home back in working order. Also, this will also result in improved comfort as well.

Whining Noise

If you hear a squealing 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 big problems so make sure you give us a call at 614-334-3192 and we’ll make sure your heating equipment is ready to keep you safe and warm all winter long.

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