5 Loud Sounds From Your Furnace That Mean Trouble

It’s normal for mechanical objects, from cars to elevators, to make noise during operation. Your furnace in Rocklin, CA, is no different. But noises from your furnace should be quiet. Below are five sounds from your furnace that mean trouble and require the attention of a professional immediately.

Loud Humming

When a heating system runs, the normal sound it should make is a low hum. If a loud hum occurs, this indicates a problem with a capacitor or a fan, which lowers the energy-saving ability of your heater.

Pops or Bangs

Soft popping sounds are typically normal when warm air hits the cold metal in the ducts, causing expansion. However, loud popping noises indicate that the burners of your furnace are dirty. Unattended to, this causes gas buildup and cracks in your heat exchanger.

Rumbling

If a rumbling occurs after your heater finishes a cycle, this is cause for concern. Even though the burners shut down, there’s fuel continuing to burn in the combustion chamber. This increases the risk of carbon monoxide production, which impacts your indoor air quality and health.

Squealing

If there’s a squealing noise coming from your furnace, there’s an issue with the blower motor. One of the common causes is a loose belt, but it can also be something more complex.

Thumping

Thumping noises indicate a serious issue that requires the immediate repair and maintenance services of an HVAC professional. It usually means an unbalanced blower wheel or motor, both of which are major parts of the heater.

If you’re experiencing any of these noises, it’s time to call a professional before your heating system leaves you in the cold this winter. Our professional and knowledgeable service technicians offer all the HVAC services you need. Call Jaguar Heating & Air so that our heater repair services can get your system back into proper operating condition.

Image provided by iStock

You May Also Like

Ductless AC Troubleshooting
July 20, 2025

Ductless Mini-Splits in Roseville, CA: A Troubleshooting Guide

Many homeowners in Roseville, CA, like ductless mini-split air conditioning systems for their efficiency, reliability and low noise. Like all HVAC equipment,… Continue Reading Ductless Mini-Splits in Roseville, CA: A Troubleshooting Guide

Read More…

Controlling New Smart Thermostat
June 9, 2025

5 Benefits of a New Smart Thermostat in Folsom, CA

From saving you money on your monthly energy bills to improving indoor air quality, a smart thermostat is convenient and efficient. Considering… Continue Reading 5 Benefits of a New Smart Thermostat in Folsom, CA

Read More…

Poor Home Air Quality
May 29, 2025

3 Consequences of Neglecting Your Home Air Quality

Indoor air quality is something that should be top of mind for every homeowner. There are many problems that can develop as… Continue Reading 3 Consequences of Neglecting Your Home Air Quality

Read More…

Compliance Settings
Increase Font Size
Grayscale
Simplified Font
Underline Links
Highlight Links
Reset
Close