When the furnace in your Mauldin, SC home is working correctly, you might hear a low, steady hum that’s barely noticeable. But if you start hearing strange or loud noises, it could mean something is wrong. Look below for noises that could be your furnace’s cries for help.
Booming or Banging
A gas furnace might make a boom or a bang when it’s starting. It makes this noise because of a delay in ignition.
The delay causes a buildup of gas, which creates a small explosion when it finally ignites. This problem could damage the furnace or crack the heat exchanger and you should have our technicians address the issue promptly.
Rattling
A rattle usually indicates loose parts inside the furnace. It’s not uncommon for nuts, bolts, and panels to come loose and start vibrating.
Loose parts usually aren’t dangerous, but ignoring the issue can cause wear and tear on your system. However, in some cases, rattling might mean there’s a crack or leak in the furnace, and that is a risky situation.
Squealing or Screeching
A shrill squeal or screech can mean the blower belt is failing. The sound might also mean that motor bearings need lubrication.
You might not notice this sound immediately, as it can start softly and get louder over time. Ignoring this problem could lead to damage to the motor. Regular HVAC maintenance is one way to prevent this type of problem.
Clicking
Your furnace might make a clicking noise when it starts. If it clicks a few times before it starts, that could mean there’s an issue with the ignition system. And if it’s a gas furnace, a click could signal that there’s a malfunctioning gas valve.
A furnace that makes uncommon sounds usually needs service. Contact us at Palmetto Heating & Air LLC for professional heating repair.
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