When your furnace is operating correctly, it should give warm air without making too much sound. While it’s normal to hear your furnace making noise as it starts up, other disruptions are signaling your furnace needs immediate professional assistance.

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

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 may indicate there could be a couple of problems. These include gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns filthy over the years, so that’s why it’s important to schedule seasonal furnace maintenance with Dearing's Service & Solutions. One of the tasks our techs do during this appointment is clean your furnace’s burners. When this piece gets grubby, you could hear your furnace making a loud rumbling noise when ignition takes longer than normal. The ensuing gas buildup can crack your furnace’s heat exchanger, where natural gas changes into warmth. Any fractures in it can leak carbon monoxide, which is regularly emitted outside. This dangerous gas can be lethal in large concentrations.

If you’re noticing 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. Too much natural gas in your furnace or a ruptured heat exchanger are critical troubles that should get fast service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move hot air throughout your home. If the ductwork wasn’t put in right or is getting old, it can be loud when your furnace is heating. This can be the case 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 Making a Buzzing Noise

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

Your furnace relies on an internal transformer to run on the right voltage. If wires or the box is loose, you could notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves hot or chilly air across your home, and a capacitor, which turns on the motor. If either of these pieces 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 due to something little, like an unsecure screw, or something major, like a broken component. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 812-200-5844 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s attempting 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 could need to be lubed. We know that maintenance sometimes slips your mind, but our techs can get your furnace heating quietly again fast.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You may also hear whistling while the furnace is operating if a floor vent isn’t tight. If you’ve examined your vents but are still sensing noise, Dearing's Service & Solutions can provide support. It’s critical to get loose ductwork repaired quickly, since it can make comfort troubles in your residence 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. Switch off your furnace off promptly and reach us at 812-200-5844 for help.

When you’re hearing an atypical noise from your furnace, Dearing's Service & Solutions is available to help. Contact us at 812-200-5844 to request your furnace repair appointment now.