Why Does My Furnace Make So Much Noise in Little River, SC

There are several things that can cause your Little River, SC furnace to make noise. Some furnace noises are normal, such as when you hear a clicking when the unit turns on and a slight humming while it runs. Read on to learn about some common furnace noises and what could potentially be causing them.

Bangs and Booms

If you hear banging or a loud boom when the furnace turns on, the reason can be that a small gas explosion occurs during ignition. This noise points to a build-up of gas in the combustion chamber. This is a sign that there could be a clog or pressure issue, which you should have repaired immediately.

Alternatively, popping can be a sign of soot accumulation on the gas burner. This is more common with older heating units. Regular maintenance can help prevent this issue.

Shrieks and Squeals

Shrieking and squealing noises usually indicate the furnace motor isn’t running properly. A belt that is aging and worn might cause this noise. Our trained and licensed technicians in Little River can inspect the motor and correct the issue.

Pops

In most cases, a loud popping noise is because warm air comes in contact with cooler air inside the ducts when the furnace turns on. This phenomenon causes the ducts to expand, and the metal makes a popping sound. Unless the sound changes, gets louder or comes from a different area, this is usually not a problem.

Scrapes

The blower wheel may be loose if you hear constant scraping sounds. However, this type of noise could also be a sign that the ball bearings have worn out. In either case, continuing to run the furnace can further damage the unit.

If you notice that your furnace is making unusual noises, you should contact us for heating system repairs. Ductworks Heating & Cooling, Inc. is available around the clock to address any emergency furnace issues you may encounter.

Image provided by iStock