Why Your Furnace May Be Making These Noises

November 23, 2016

Now is when families start turning on their heaters to settle in for a frigid 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 inspected. A major problem you may discover is your furnace making unusual noises – check out these furnace noises you should never disregard.

Scraping Sound

If you hear a loud scraping racket that sounds like metal on metal, there is possibly something faulty with the blower wheel. If you hear something like this, shut off your furnace right away and call D & K Heating Service Experts to inspect the equipment. There are multiple things that could be faulty with the blower wheel. First, it could just be loose and if the piece is not too harmed, can be tightened. Second, it might be that the blower wheel is broken and in need of replacement. Or third, it may be that the motor mount is what broke, causing the complete blower assembly to rattle uncontrollably. One of our service experts would be happy to come over and take a look, and get you back to the quiet and comfortable home you have come to adore.

Loud Bang When Furnace Starts

If there is a loud bang when your furnace comes on, there are a couple things that could be happening. Two typical problems are a dirty furnace burner or ignitor. Expanding and contracting air ducts can also produce loud sounds after the furnace blower comes on. A filthy furnace burner or ignitor could delay the burners from igniting, resulting in gas to build up. When the gas finally does ignite, it will create the loud bang you hear. This could cause a safety issue, especially if one of those small explosions caused the heat exchanger to break. Not only could that result in a carbon monoxide leak, but you will have to replace the heat exchanger, which may be very costly.

The other issue, expanding and contracting air ducts, is a typical noise complaint for homeowners with metal ducts. If your system is making the loud bang and it is caused by your air ducts, it could be an indication of undersized ducts, closed vents, or a clogged air filter. D & K Heating Service Experts is happy to set up an appointment to diagnose your issue and get your home back in working order. Also, this will also provide improved comfort as well.

Whining Noise

If you hear a squealing 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. A routine furnace tune-up will help find these issues before they become big problems so make sure you give us a call at 613-707-2421 and we’ll make sure your heating system is ready to keep you safe and comfortable all winter long.

Contact Us