Why Your Furnace May Be Making These Noises

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

Scraping Sound

If you hear a loud scratching racket that sounds like metal on metal, there is possibly something wrong with the blower wheel. If you hear a noise like this, shut off your furnace ASAP and call Service Experts Heating, Air Conditioning & Plumbing to inspect the system. There are a few things that could be faulty 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 might 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 over and take a look, and get you back to the quiet and warm home you have come to love.

Loud Bang When Furnace Starts

If there is a loud bang when your furnace comes on, there are a few things that could be occurring. Two common things are a dirty furnace burner or ignitor. Extending and contracting air ducts can also produce loud booms after the heating blower comes on. A dirty furnace burner or ignitor could delay the burners from igniting, resulting in gas to build up. When the gas finally ignites, 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 break. Not only could that produce a carbon monoxide leak, but you would also have to replace the heat exchanger, which could be very pricey.

The other issue, stretching and contracting air ducts, is a common noise complaint for homeowners with metal ducts. If your equipment is making the loud pop and it is a result of your air ducts, it could be an indication of undersized ducts, closed vents, or a clogged air filter. Service Experts Heating, Air Conditioning & Plumbing is happy to set up an appointment to diagnose your trouble and get your home back in shape for the winter. Additionally, this will also result in improved comfort as well.

Whining Noise

If you hear a whining sound, it could be the blower belt, shaft bearings in need of oil, or even a malfunctioning blower motor. A routine system tune-up will help discover these issues before they become major problems so make sure you give us a call at 866-397-3787 and we’ll make sure your furnace is ready to keep you safe and warm all winter long.