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All furnaces make noises while running. However, noises that appear suddenly or are too loud usually indicate a problem that should be addressed immediately. Here are some common sounds you can listen for so you can arrange for service ASAP. 

Why Is Your Furnace Making Those Noises?

1. Squealing

The forced air blower pushes air through ducts and into your home. The belt between the fan and motor is constantly moving, and as a result, it can sometimes shake loose during operation. The loose belt causes a squealing noise and needs to be tightened or replaced. 

Squealing may also signal dry bearings or other moving parts. They need lubrication to reduce friction and stop the noise.

2. Whistling

furnaceWhistling noises usually indicate an issue with your air ducts. Gaps between seams or small holes in the ducts allow air to escape, which causes the furnace to whistle while running. Along with being annoying, holes in air ducts also contribute to air loss, which puts stress on your furnace and increases utility costs. Whistling may also be caused by a dirty air filter, which should be changed or cleaned regularly. 

3. Banging & Booming

The burner is where air and fuel mix to heat your home. Burners can sometimes become soiled over time, which is a more serious issue than one might think.

A dirty burner can cause a delayed ignition, which means that gas is building up. The booming you hear when the unit turns on is a small explosion of the gas buildup. If you notice a loud boom or bang, call a professional immediately to inspect and clean the burners.

 

Most furnace problems require professional assistance from a skilled HVAC repair specialist. Extreme Heating and Air LLC of Eagle River, AK, can capably diagnose and repair a multitude of issues. Because they understand that HVAC issues can be inconvenient, they provide flexible scheduling to ensure the problem is rectified in a timely manner. This company is also licensed, bonded, and fully insured. Schedule service by calling (907) 726-1805. Visit them online to request a quote. 

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