When your furnace is running like it should, it should deliver warmth without making too much noise. While it’s common to catch your furnace making noise as it turns on, other sounds are showing your furnace should get immediate professional assistance.

Here are some of the most frequent furnace noises and what they could be signaling. If your furnace is making an odd noise, our friendly heating pros are here to fix the problem with the best furnace repair in Crown Point, Indiana.

1. Furnace Making a Banging Noise

You could have a serious situation on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be a few problems. These range from gas accumulating in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over the years, so that’s why it’s critical to set yearly furnace maintenance with Struven Heating & Cooling. One of the jobs our pros perform during this appointment is clean your furnace’s burners. When this part gets dirty, you might hear your furnace making a loud rumbling noise when ignition is delayed. The ensuing gas buildup might break your furnace’s heat exchanger, where natural gas transforms into heat. Any cracks in it can emit carbon monoxide, which is regularly released outdoors. This dangerous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Struven Heating & Cooling urges you to turn it off and calling us at 219-292-0956. Too much natural gas in your furnace or a cracked heat exchanger are critical problems that should get immediate attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver heated air throughout your house. If the ductwork wasn’t put in properly or is aging, it can be noisy when your furnace runs. This might be the problem if your furnace makes a banging noise when it shuts off. Get in touch with Struven Heating & Cooling at 219-292-0956 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

If you observe your furnace making a buzzing noise, don’t wait to call us. A buzzing sound usually indicates an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to work on the proper voltage. If wires or the box isn’t tight enough, you could detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or chilly air around your space, and a capacitor, which turns on the motor. If either of these components are fading, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be the result of something small, like an unsecure screw, or something critical, like a broken component. In either case, we advise shutting your furnace off and calling our heating professionals at 219-292-0956 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to tell you it could use some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn down or a bearing may need to be lubricated. We realize that maintenance sometimes slips your mind, but our pros 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 frequently because of an air leak in your ductwork. You might also be aware of whistling while the furnace is running if a floor vent isn’t tight. If you’ve looked at your vents but are still sensing noise, Struven Heating & Cooling can provide support. It’s important to get loose ductwork fixed without delay, as it can make comfort issues in your house and inflate your utility bills.

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 noise frequently means there’s an issue with your furnace’s blower. Switch off your furnace off now and reach our pros at 219-292-0956 for support.

When you’re noticing a strange noise from your furnace, Struven Heating & Cooling is here to support you. Contact us at 219-292-0956 to book your furnace repair appointment now.