When your furnace is running properly, it should give warmth without making too much sound. While it’s normal to catch your furnace making noise as it begins running, other disruptions are signaling your furnace needs immediate professional support.

Here are some of the most common furnace noises and what they could 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 Jefferson City, Missouri.

1. Furnace Making a Banging Noise

You could have a critical situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be several problems. These involve gas increasing in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty as time passes, so that’s why it’s essential to book routine furnace maintenance with Stieferman Heating Company Inc. One of the tasks our techs complete during this appointment is clean your furnace’s burners. When this part gets grubby, you might hear your furnace making a loud rumbling noise after ignition takes more time. The resulting gas buildup might fracture your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can discharge carbon monoxide, which is ordinarily emitted outside. This dangerous gas can be fatal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Stieferman Heating Company Inc recommends turning it off and reaching us at 573-635-3547. Significant natural gas in your furnace or a fractured heat exchanger are serious troubles that necessitate immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver warm air throughout your home. If the ductwork wasn’t put in right or is getting old, it can be noisy when your furnace is heating. This may be the problem if your furnace makes a banging noise when it shuts off. Get in touch with Stieferman Heating Company Inc at 573-635-3547 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound usually is telling you there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to operate on the correct voltage. If wires or the box isn’t tight enough, you may detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or cold air across your house, 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 can be the result of something little, like a loose screw, or something major, like a broken component. In either case, we urge you to shut your furnace off and getting in touch with our heating specialists at 573-635-3547 for help.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying to tell you it requires some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn out or a bearing may 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 Makes a Whistling Sound Like Air Escaping

When you’re detecting your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You could also notice whistling while the furnace is on if a floor vent is loose. If you’ve looked at your vents but are still noticing whistling, Stieferman Heating Company Inc can help. It’s important to get loose ductwork repaired quickly, because it can result in comfort issues in your home and drive up your heating costs.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal racket often means there’s an issue with your furnace’s blower. Shut down your furnace off promptly and reach us at 573-635-3547 for support.

When you’re getting an atypical noise from your furnace, Stieferman Heating Company Inc is available to provide assistance. Contact us at 573-635-3547 to book your furnace repair appointment right away.