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

Here are some of the most reported furnace noises and what they could be indicating. If your furnace is making a strange noise, our friendly heating pros are here to help with the best furnace repair in Norton, Virginia.

1. Furnace Makes Banging or Knocking Sounds

You could have a serious situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be a couple of problems. These range from gas increasing in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system turns filthy over the years, so that’s why it’s important to schedule routine furnace maintenance with HCE Systems. One of the things our professionals do during this work is clean your furnace’s burners. When this part gets dirty, you could hear your furnace making a loud rumbling noise if ignition takes more time. The resulting gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into warm air. Any cracks in it can leak carbon monoxide, which is ordinarily released outside. This hazardous gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, HCE Systems advises turning it off and reaching us at 276-302-0076. Excessive natural gas in your furnace or a broken heat exchanger are critical issues that require fast service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide hot air across your home. If the ductwork wasn’t designed right or is aging, it can be loud when your furnace is heating. This could be the problem if your furnace makes a banging noise when it shuts off. Call HCE Systems at 276-302-0076 and we’ll figure out the problem.

2. Furnace Buzzes Constantly

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

Your furnace uses an internal transformer to run on the proper voltage. If wires or the box isn’t tight enough, you may notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes hot or chilly air throughout your home, and a capacitor, which triggers the motor. If either of these components are going out, they will buzz when the furnace starts.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it could be related to something little, like an unfastened screw, or something serious, like a broken component. In either case, we advise shutting your furnace off and calling our heating professionals at 276-302-0076 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to tell you it could use some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn down or a bearing may need to be greased. We realize that maintenance frequently slips your mind, but our techs can get your furnace running quietly again fast.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You might also be aware of whistling while the furnace is operating if a floor vent is loose. If you’ve looked at your vents but are still sensing noise, HCE Systems can provide support. It’s important to get loose ductwork taken care of fast, since it can make comfort problems in your residence and increase your energy expenses.

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 racket often means there’s a problem with your furnace’s blower. Switch off your furnace off immediately and reach our pros at 276-302-0076 for help.

When you’re hearing an uncommon noise from your furnace, HCE Systems is ready to help. Contact us at 276-302-0076 to book your furnace repair appointment today.