When your furnace is running correctly, it should provide warm air without making too much noise. While it’s normal to notice your furnace making noise as it starts up, other noises are showing your furnace needs immediate professional support.

Here are some of the most reported furnace noises and what they could be signaling. If your furnace is making a weird noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Huntingburg, Indiana.

1. Furnace Makes Banging or Knocking Sounds

You might have a serious problem on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be several problems. These involve gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns grimy over the years, so that’s why it’s important to book yearly furnace maintenance with Dearing's Service & Solutions. One of the tasks our professionals perform during this appointment is clean your furnace’s burners. When this component gets grubby, you might hear your furnace making a loud rumbling noise after ignition is delayed. The following gas buildup might crack your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can leak carbon monoxide, which is regularly emitted 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, Dearing's Service & Solutions advises turning it off and calling us at 812-200-5844. Significant natural gas in your furnace or a broken heat exchanger are critical troubles that require immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide warm air across your home. If the ductwork wasn’t installed correctly or is getting old, it can be loud when your furnace is heating. This might be the issue if your furnace makes a banging noise when it shuts off. Call Dearing's Service & Solutions at 812-200-5844 and we’ll determine the problem.

2. Furnace Makes a Buzzing Sound

If you hear 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 depends on an internal transformer to work on the right voltage. If wires or the box needs to be tightened, you could detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves heated or cold air across your residence, and a capacitor, which starts the motor. If either of these parts are failing, they will buzz when the furnace turns on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it could be the result of something small, like an unsecure screw, or something major, like a broken component. In either case, we advise shutting your furnace off and calling our heating pros at 812-200-5844 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s making an effort to get your attention it requires some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn out or a bearing might need to be lubricated. We are aware that maintenance sometimes slips your mind, but our technicians can get your furnace operating quietly again fast.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You could also hear whistling while the furnace is on if a floor vent isn’t tight. If you’ve looked at your vents but are still hearing sound, Dearing's Service & Solutions can assist you. It’s critical to get loose ductwork fixed fast, since it can create comfort issues in your house and inflate your energy bills.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal sound frequently means there’s trouble with your furnace’s blower. Turn off your furnace off instantly and contact us at 812-200-5844 for support.

When you’re noticing an uncommon noise from your furnace, Dearing's Service & Solutions is ready to support you. Contact us at 812-200-5844 to schedule your furnace repair appointment right away.