Why Your Furnace May Be Making These Noises

November 23, 2016

This is the time of year homeowners start turning on their heaters to settle in for a frigid winter. Unfortunately, when some heating systems start up, especially if it hasn’t had a fall heating tune-up, there are some troubles that need to be assessed. A serious problem you may run into is your furnace making funny noises – check out these furnace noises you should never disregard.

Scraping Sound

If you hear a loud scraping noise that sounds like metal on metal, there is possibly something defective with the blower wheel. If you hear something like this, turn off your furnace ASAP and call Atmostemp Service Experts Heating & Air Conditioning to inspect the furnace. There are multiple things that could be faulty with the blower wheel. First, it might 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 could be that the motor mount itself broke, causing the whole blower assembly to vibrate uncontrollably. One of our service experts would be happy to come to your home and take a look, and get you back to the quiet and cozy home you have come to love.

Loud Bang When Furnace Starts

If there is a loud boom when your furnace comes on, there are a few things that could be happening. Two common issues are a dirty furnace burner or ignitor. Extending and contracting air ducts can also create loud sounds after the furnace blower comes on. A soiled 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 break. Not only could that produce a carbon monoxide leak, but you will have to replace the heat exchanger, which may be very costly.

The other problem, extending and contracting air ducts, is a usual noise complaint for people with metal ducts. If your equipment is making the loud boom and it is caused by your air ducts, it could be an indication of undersized ducts, closed vents, or a clogged air filter. Atmostemp Service Experts Heating & Air Conditioning is happy to come out to diagnose your trouble and get your home back in working order. Additionally, this will also result in improved comfort as well.

Whining Noise

If you hear a whining disturbance, it could be the blower belt, shaft bearings in need of oil, or even a malfunctioning blower motor. A seasonal heating tune-up will help find these issues before they become serious problems so make sure you call us at 856-310-4824 and we’ll make sure your furnace is ready to keep you safe and warm all winter long.

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