When your furnace is operating properly, it should deliver heat without creating too much disruption. While it’s normal to notice your furnace making noise as it begins running, other sounds are indicating your furnace requires immediate professional assistance.

Here are some of the most reported furnace noises and what they might mean. If your furnace is making a weird noise, our friendly heating pros are here to fix the problem with the best furnace repair in Jefferson City, Missouri.

1. Furnace Making a Banging Noise

You could have an urgent problem on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be several problems. These include gas increasing in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy over time, so that’s why it’s important to schedule routine furnace maintenance with Stieferman Heating Company Inc. One of the tasks our pros do 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 longer than normal. The following gas buildup might fracture your furnace’s heat exchanger, where natural gas changes into warm air. Any cracks in it can emit carbon monoxide, which is normally vented away from your home. This dangerous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Stieferman Heating Company Inc urges you to turn it off and reaching us at 573-635-3547. Too much natural gas in your furnace or a ruptured heat exchanger are serious problems that require immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide warm air throughout your home. If the ductwork wasn’t designed right or is getting old, it can be loud when your furnace is on. This can be the problem if your furnace makes a banging noise when it shuts off. Call Stieferman Heating Company Inc at 573-635-3547 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 issue, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to work on the right voltage. If wires or the box isn’t tight enough, you could notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves warm or chilly air throughout your rooms, and a capacitor, which turns on the motor. If either of these components are going out, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be due to something minor, like an unfastened screw, or something major, like a broken component. In either case, we recommend shutting off your furnace and calling our heating specialists at 573-635-3547 for support.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to alert you it requires some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing may need to be lubricated. We realize that maintenance often slips your mind, but our pros can get your furnace heating quietly again fast.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You could also hear whistling while the furnace is working if a floor vent isn’t tight. If you’ve checked your vents but are still hearing sound, Stieferman Heating Company Inc can help. It’s critical to get loose ductwork fixed without delay, because it can result in comfort problems in your residence and inflate your utility bills.

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 usually means there’s trouble with your furnace’s blower. Switch off your furnace off now and reach us at 573-635-3547 for help.

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