When your furnace is working like it should, it should give warm air without generating too much noise. While it’s expected to hear your furnace making noise as it starts up, other disruptions are indicating your furnace needs immediate professional assistance.

Here are some of the most frequent furnace noises and what they might be signaling. If your furnace is making a strange noise, our friendly heating specialists are here to assist with the best furnace repair in Huntingburg, Indiana.

1. Furnace Makes Banging or Knocking Sounds

You could have a critical issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be several problems. These include gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over the years, so that’s why it’s essential to schedule seasonal furnace maintenance with Dearing's Service & Solutions. One of the things our techs perform during this service is clean your furnace’s burners. When this piece gets dirty, you might hear your furnace making a loud rumbling noise if ignition is delayed. The resulting gas buildup might fracture your furnace’s heat exchanger, where natural gas changes into warm air. Any cracks in it can discharge carbon monoxide, which is normally emitted outside. This dangerous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Dearing's Service & Solutions urges you to turn it off and reaching us at 812-200-5844. Excessive natural gas in your furnace or a fractured heat exchanger are critical issues that require fast attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver warm air across your home. If the ductwork wasn’t designed properly or is getting old, 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. Contact Dearing's Service & Solutions at 812-200-5844 and we’ll determine the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace depends on an internal transformer to work on the correct 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 has a blower motor, which distributes heated or cold air around your home, and a capacitor, which starts the motor. If either of these pieces 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 related to something minor, like a loose screw, or something major, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating professionals at 812-200-5844 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s attempting to tell you it could use some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn out or a bearing may need to be lubed. We are aware that maintenance sometimes slips your mind, but our professionals can get your furnace operating quietly again fast.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You could also notice whistling while the furnace is on if a floor vent isn’t tight. If you’ve checked your vents but are still sensing noise, Dearing's Service & Solutions can assist you. It’s important to get loose ductwork fixed quickly, as it can create comfort troubles in your house and increase your energy expenses.

6. Furnace Making a Grinding Noise

It’s not a good sign if you detect your furnace making a grinding noise. This metal-on-metal sound usually means there’s trouble with your furnace’s blower. Switch off your furnace off immediately and call our pros at 812-200-5844 for help.

When you’re hearing an uncommon noise from your furnace, Dearing's Service & Solutions is available to provide assistance. Contact us at 812-200-5844 to book your furnace repair appointment today.