When your furnace is operating like it should, it should give warmth without generating too much disruption. While it’s normal to catch your furnace making noise as it turns on, other noises are indicating your furnace needs immediate professional support.

Here are some of the most reported furnace noises and what they can be signaling. If your furnace is making a strange noise, our friendly heating pros are here to assist with the best furnace repair in Jefferson City, Missouri.

1. Furnace Making a Banging Noise

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

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over time, so that’s why it’s critical to schedule yearly furnace maintenance with Stieferman Heating Company Inc. One of the things our technicians do during this work is clean your furnace’s burners. When this part gets dirty, you may hear your furnace making a loud rumbling noise after ignition is delayed. The following gas buildup can fracture your furnace’s heat exchanger, where natural gas turns into warmth. Any breaks in it can emit carbon monoxide, which is ordinarily released outdoors. This dangerous gas can be deadly in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Stieferman Heating Company Inc advises turning it off and contacting us at 573-635-3547. Too much natural gas in your furnace or a ruptured heat exchanger are serious troubles that should get fast attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide heated air throughout your house. If the ductwork wasn’t designed correctly or is getting old, it can make a lot of noise when your furnace is heating. This might be the issue 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 determine the problem.

2. Furnace Making a Buzzing Noise

If you observe your furnace making a buzzing noise, don’t delay calling us. A buzzing sound often is telling you there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to run on the right voltage. If wires or the box is loose, you could hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes heated or cold air throughout your space, and a capacitor, which triggers the motor. If either of these parts are failing, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be the result of something small, like a loose screw, or something critical, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating specialists at 573-635-3547 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to get your attention it needs some TLC. If you’ve neglected furnace maintenance recently, belts could be worn out or a bearing may need to be lubed. We realize that maintenance often slips your mind, but our technicians can get your furnace running quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You may also hear whistling while the furnace is operating if a floor vent is loose. If you’ve looked at your vents but are still hearing sound, Stieferman Heating Company Inc can assist you. It’s essential to get loose ductwork taken care of without delay, as it can result in comfort problems in your house and increase your utility bills.

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 sound often means there’s a problem with your furnace’s blower. Turn off your furnace off instantly and contact us at 573-635-3547 for support.

When you’re noticing a weird noise from your furnace, Stieferman Heating Company Inc is ready to support you. Contact us at 573-635-3547 to schedule your furnace repair appointment right away.