When your furnace is running like it should, it should deliver warm air without creating too much sound. While it’s expected to hear your furnace making noise as it begins running, other disruptions are showing your furnace requires immediate professional support.

Here are some of the most reported furnace noises and what they can be indicating. If your furnace is making a weird noise, our friendly heating specialists are here to assist with the best furnace repair in Des Moines, Iowa.

1. Furnace Makes a Banging Sound

You could have a serious issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a few problems. These range from gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system turns grimy over the years, so that’s why it’s essential to book yearly furnace maintenance with Heartland Heating & Cooling. One of the jobs our technicians perform during this work is clean your furnace’s burners. When this component gets grubby, you could hear your furnace making a loud rumbling noise after ignition takes longer than normal. The subsequent gas buildup may fracture your furnace’s heat exchanger, where natural gas transforms into warmth. Any fractures in it can discharge carbon monoxide, which is normally emitted outside. This dangerous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Heartland Heating & Cooling urges you to turn it off and contacting us at 515-344-3579. Excessive natural gas in your furnace or a ruptured heat exchanger are dangerous problems that necessitate immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move heated air throughout your home. If the ductwork wasn’t designed right or is getting old, it can be noisy when your furnace is heating. This can be the issue if your furnace makes a banging noise when it shuts off. Contact Heartland Heating & Cooling at 515-344-3579 and we’ll figure out the problem.

2. Furnace Buzzes Constantly

If you notice your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound usually indicates 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 is loose, you could hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cold air around your space, and a capacitor, which starts the motor. If either of these components are going out, they will buzz when the furnace switches on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it can be due to something minor, like a loose screw, or something major, like a broken part. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 515-344-3579 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to tell you it could use some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing may need to be lubricated. We are aware that maintenance frequently slips your mind, but our professionals can get your furnace running quietly again rapidly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re detecting your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You could also be aware of whistling while the furnace is on if a floor vent isn’t secure. If you’ve checked your vents but are still hearing whistling, Heartland Heating & Cooling can provide support. It’s critical to get loose ductwork repaired fast, because it can make comfort problems in your home and inflate your energy costs.

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 noise frequently means there’s a problem with your furnace’s blower. Switch off your furnace off immediately and call our pros at 515-344-3579 for assistance.

When you’re getting a strange noise from your furnace, Heartland Heating & Cooling is here to provide assistance. Contact us at 515-344-3579 to request your furnace repair appointment right away.