When your furnace is operating like it should, it should deliver warmth without making too much disruption. While it’s normal to catch your furnace making noise as it turns on, other disruptions are signaling your furnace requires immediate professional help.

Here are some of the most frequent furnace noises and what they can be signaling. If your furnace is making a weird noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Manassas, Virginia.

1. Furnace Makes Banging or Knocking Sounds

You could have a critical situation on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be several problems. These range from gas accumulating in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets filthy over time, so that’s why it’s critical to book seasonal furnace maintenance with Air-Right Energy Design. One of the tasks our techs perform during this work is clean your furnace’s burners. When this component gets dirty, you could hear your furnace making a loud rumbling noise after ignition is delayed. The subsequent gas buildup might crack your furnace’s heat exchanger, where natural gas transforms into heat. Any breaks in it can leak carbon monoxide, which is ordinarily released outdoors. This toxic gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Air-Right Energy Design recommends turning it off and contacting us at 703-260-1148. Too much natural gas in your furnace or a fractured heat exchanger are serious problems that require fast attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide hot air across your residence. If the ductwork wasn’t designed correctly or is getting old, it can make a lot of noise when your furnace runs. This may be the case if your furnace makes a banging noise when it shuts off. Get in touch with Air-Right Energy Design at 703-260-1148 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

If you observe your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound frequently means there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to operate on the correct voltage. If wires or the box is loose, you may hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends warm or cooled air across your rooms, and a capacitor, which triggers the motor. If either of these pieces are fading, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be the result of something small, like an unfastened screw, or something serious, like a broken component. In either case, we advise shutting your furnace off and calling our heating specialists at 703-260-1148 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to get your attention it requires some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn down or a bearing could need to be greased. We know that maintenance often slips your mind, but our techs can get your furnace operating quietly again fast.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You could also hear whistling while the furnace is running if a floor vent isn’t tight. If you’ve checked your vents but are still noticing sound, Air-Right Energy Design can assist you. It’s important to get loose ductwork repaired fast, because it can result in comfort troubles in your home and drive up your gas costs.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal sound typically means there’s trouble with your furnace’s blower. Shut down your furnace off right away and call our professionals at 703-260-1148 for assistance.

When you’re hearing an atypical noise from your furnace, Air-Right Energy Design is here to provide assistance. Contact us at 703-260-1148 to schedule your furnace repair appointment today.