Why Your Furnace May Be Making These Noises

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

Scraping Sound 

If you hear a loud raking sound that sounds like metal on metal, there is probably something wrong with the blower wheel. If you hear a sound like this, turn off your furnace immediately and call A1 Chesney Service Experts to inspect the equipment. There are a couple things that could be wrong with the blower wheel. First, it may just be loose and if the piece is not too impaired, can be tightened. Second, it might be that the blower wheel is broken and in need of replacement. Or third, it might be that the motor mount is what broke, causing the entire blower assembly to vibrate uncontrollably. One of our service professionals would be happy to come out and take a look, and get you back to the quiet and comfortable 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 handful of things that could be happening. Two general issues are a dirty furnace burner or ignitor. Extending and contracting air ducts can also create loud sounds 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 bang you hear. This could result in a safety issue, especially if one of the small explosions caused the heat exchanger to break. Not only could that cause a carbon monoxide leak, but you would also have to replace the heat exchanger, which can be very costly. 

The other trouble, expanding and contracting air ducts, is a typical noise complaint for homes with metal ducts. If your system is making the loud pop and it is caused by your air ducts, it could be an indication of undersized ducts, closed vents, or a clogged air filter. A1 Chesney Service Experts is happy to set up an appointment to diagnose your issue and get your home back to order. Additionally, this will also provide improved comfort as well. 

Whining Noise 

If you hear a squealing sound, it could be the blower motor is malfunctioning, the shaft bearings are in need of oil, or an issue with the blower belt. A seasonal system tune-up will help discover these issues before they become big problems so make sure you call us at 587-315-5271 and we’ll make sure your furnace is ready to keep you safe and cozy all winter long.