You shouldn’t ignore noises coming from the furnace in your Saint Petersburg, FL, home. While sometimes there is no cause for worry, it can be a sign of a serious problem. In this article, we’ll look at some sounds you may notice from your furnace and what they mean.

1. Loud and Continuous Humming

A low hum is normal for most equipment in your home, such as your furnace. The transformer may produce a similar sound when your furnace is new. If the humming is loud and continuous, it could signify a malfunctioning fan or capacitor.

2. Grinding or Screeching Sounds

You may notice grinding noises such as metal rubbing against another metal coming from your furnace. The sound is usually a sign of a loose blower motor scrapping against its housing.

When the blower wheel is loose, you may also notice vibration, screeching or rattling. The next best course of action is to switch off the system and schedule for repairs.

3. A High-Pitched Squealing Noise

If you notice a high-pitched squealing noise, the most probable cause is your blower motor. Lack of lubrication may be causing friction within its moving parts.

However, it’s possible that the blower motor has malfunctioned or it needs a new belt. You can consult our furnace repair technicians from Arctic Air Systems in Saint Petersburg, FL, to fix your blower components.

4. Loud Bang When Starting Your System

You may also notice your system produces a banging sound every time you start your furnace. This may mean clogged burners, or there could be a problem with the ignition system.

A loud bang can also be a sign of clogged or undersized ductwork. The sound could be a sign of a fatal problem with your system. Shut off your system and call a professional.

5. Low Rumbling Sound

Your furnace may have a problem with the burner or flame sensors when it produces a low rumbling sound. Address the issue immediately by calling a professional as it may pose a carbon monoxide poisoning threat.

Call Arctic Air Systems today to let our NATE-certified maintenance technicians tune up and calibrate your system in Saint Petersburg, FL. We offer comprehensive maintenance agreements to ensure your system is working efficiently throughout the season.

Image provided by iStock

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