When your furnace is running properly, it should give warm air without creating too much noise. While it’s common to hear your furnace making noise as it starts up, other disruptions are indicating your furnace requires immediate professional assistance.

Here are some of the most reported furnace noises and what they might be signaling. If your furnace is making a strange noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Auburn and Opelika, Alabama.

1. Furnace Making a Banging Noise

You may have an urgent situation on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be a few problems. These involve gas accumulating in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets dirty over time, so that’s why it’s essential to book seasonal furnace maintenance with Farnell Mechanical, Inc.. One of the tasks our technicians complete during this service is clean your furnace’s burners. When this part gets grimy, you might hear your furnace making a loud rumbling noise when ignition takes more time. The resulting gas buildup can break your furnace’s heat exchanger, where natural gas changes into heat. Any fractures in it can discharge carbon monoxide, which is normally vented outdoors. This dangerous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Farnell Mechanical, Inc. advises turning it off and contacting us at 334-524-2458. Excessive natural gas in your furnace or a broken heat exchanger are dangerous problems that should get fast service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver heated air throughout your residence. If the ductwork wasn’t designed right or is getting old, it can make a lot of noise when your furnace is on. This could be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Farnell Mechanical, Inc. at 334-524-2458 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound often indicates an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to run on the correct voltage. If wires or the box isn’t tight enough, you might detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends heated or cooled air across your rooms, and a capacitor, which starts the motor. If either of these components are failing, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be related to something small, like a loose screw, or something serious, like a broken piece. In either case, we recommend shutting off your furnace and calling our heating pros at 334-524-2458 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to tell you it requires some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing could need to be lubed. We know that maintenance frequently slips your mind, but our pros can get your furnace running quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You might also notice whistling while the furnace is operating if a floor vent isn’t secure. If you’ve looked at your vents but are still hearing noise, Farnell Mechanical, Inc. can assist you. It’s important to get loose ductwork fixed quickly, since it can make comfort issues in your home and increase your gas costs.

6. Furnace Making a Grinding Noise

It’s not a good sign if you detect your furnace making a grinding noise. This metal-on-metal noise usually means there’s an issue with your furnace’s blower. Turn off your furnace off instantly and contact our pros at 334-524-2458 for assistance.

When you’re hearing a weird noise from your furnace, Farnell Mechanical, Inc. is available to support you. Contact us at 334-524-2458 to request your furnace repair appointment right away.