When your furnace is running correctly, it should give warmth without making too much noise. While it’s normal to notice your furnace making noise as it begins running, other sounds are indicating your furnace should get immediate professional support.

Here are some of the most reported furnace noises and what they could be indicating. If your furnace is making an atypical noise, our friendly heating pros are here to help with the best furnace repair in Rapid City, South Dakota.

1. Furnace Makes Banging or Knocking Sounds

You might have a serious problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be several problems. These involve gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets filthy as time passes, so that’s why it’s important to set routine furnace maintenance with Precision Mechanical. One of the jobs our professionals complete during this work is clean your furnace’s burners. When this component gets grimy, you could hear your furnace making a loud rumbling noise when ignition takes more time. The following gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into heat. Any fractures in it can emit carbon monoxide, which is regularly emitted outside. This dangerous gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Precision Mechanical advises turning it off and contacting us at 605-206-3766. Excessive natural gas in your furnace or a broken heat exchanger are dangerous problems that require immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move heated air across your residence. If the ductwork wasn’t designed properly or is aging, 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. Contact Precision Mechanical at 605-206-3766 and we’ll determine the problem.

2. Furnace Buzzes Constantly

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

Your furnace depends on an internal transformer to operate on the right voltage. If wires or the box is loose, you could detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes heated or cold air across your house, and a capacitor, which starts the motor. If either of these parts are failing, 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 may be the result of something minor, like a loose screw, or something critical, like a broken component. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 605-206-3766 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to tell you it could use some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn down or a bearing could need to be greased. We are aware that maintenance sometimes slips your mind, but our techs can get your furnace heating quietly again fast.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You may also be aware of whistling while the furnace is operating if a floor vent isn’t tight. If you’ve examined your vents but are still noticing whistling, Precision Mechanical can help. It’s important to get loose ductwork repaired quickly, since it can result in comfort issues in your residence and increase your utility expenses.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal racket typically means there’s a problem with your furnace’s blower. Switch off your furnace off instantly and call our professionals at 605-206-3766 for support.

When you’re noticing an atypical noise from your furnace, Precision Mechanical is ready to help. Contact us at 605-206-3766 to schedule your furnace repair appointment today.