Why Your Furnace May Be Making These Noises

This is the time of year people start turning on their furnaces to settle in for a cold winter. Unfortunately, when some heating systems start up, especially if it hasn’t received a yearly heating tune-up, there are some issues that need to be inspected. A major problem you may run into is your furnace making weird noises – take a look at these furnace noises you should never disregard. 

Scraping Sound 

If you hear a loud scratching noise that sounds like metal on metal, there is probably something defective with the blower wheel. If you hear a noise like this, shut off your furnace ASAP and call Peachtree Service Experts to inspect the furnace. There are a few things that could be wrong with the blower wheel. First, it could just be loose and if the part is not too damaged, can be tightened. Second, it could be that the blower wheel is broken and will require replacement. Or third, it could be that the motor mount actually broke, causing the whole blower assembly to shake uncontrollably. One of our service technicians would be happy to come over and take a look, and get you back to the quiet and warm home you have come to adore. 

Loud Bang When Furnace Starts 

If there is a loud pop when your furnace turns 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 create loud bangs after the furnace blower comes on. A filthy furnace burner or ignitor could delay the burners from igniting, causing 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 these small explosions caused the heat exchanger to deteriorate. Not only could that result in a carbon monoxide leak, but you would also have to replace the heat exchanger, which may be very expensive. 

The other issue, stretching and contracting air ducts, is a common noise complaint for homes with metal ducts. If your system is making the loud pop and it is a result of your air ducts, it could be a symptom of undersized ducts, closed vents, or a clogged air filter. Peachtree Service Experts is happy to come out to diagnose your issue and get your home back in working order. Also, this will also result in improved comfort as well. 

Whining Noise 

If you hear a whining noise, it could be the blower motor is malfunctioning, the shaft bearings are in need of oil, or an issue with the blower belt. A routine heating tune-up will help find these issues before they become serious problems so make sure you give us a call at 678-235-9699 and we’ll make sure your heating system is ready to keep you safe and cozy all winter long.