Why Your Furnace May Be Making These Noises

November 23, 2016

This is the time of year people start turning on their furnaces to settle in for a long winter. Unfortunately, when some furnaces start up, especially if it hasn’t undergone a seasonal heating tune-up, there are some issues that need to be inspected. A serious problem you may discover is your furnace making funny noises – read about these furnace noises you should never ignore.

Scraping Sound

If you hear a loud scraping sound that sounds like metal on metal, there is possibly something defective with the blower wheel. If you hear a sound like this, power off your furnace ASAP and call Broad Ripple Service Experts to inspect the system. There are a couple things that could be faulty with the blower wheel. First, it may just be loose and if the component is not too impaired, can be tightened. Second, it could be that the blower wheel is broken and in need of replacement. Or third, it might be that the motor mount actually broke, causing the entire blower assembly to shake uncontrollably. One of our service experts would be happy to come to your home and take a look, and get you back to the noiseless and cozy home you have come to adore.

Loud Bang When Furnace Starts

If there is a loud bang when your furnace kicks on, there are a few things that could be happening. Two typical issues are a dirty furnace burner or ignitor. Stretching and contracting air ducts can also cause loud booms after the heating blower turns on. A soiled furnace burner or ignitor could holdup the burners from igniting, resulting in gas to build up. When the gas finally does ignite, it will create the loud boom you hear. This could end up being a safety issue, especially if one of the small explosions caused the heat exchanger to crack. Not only could that cause a carbon monoxide leak, but you would also have to replace the heat exchanger, which may be very costly.

The other trouble, expanding and contracting air ducts, is a common noise complaint for people with metal ducts. If your equipment is making the loud pop and it is caused by your air ducts, it could be a sign of undersized ducts, obstructed vents, or a clogged air filter. Broad Ripple Service Experts is happy to visit your home to diagnose your trouble and get your home back in working order. Also, this will also provide improved comfort as well.

Whining Noise

If you hear a high-pitched noise, 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 system tune-up will help discover these issues before they become major problems so make sure you give us a call at 317-527-0271 and we’ll make sure your heating system is ready to keep you safe and warm all winter long.

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