When your furnace is working like it should, it should deliver warmth without making too much sound. While it’s normal to catch your furnace making noise as it starts up, other disruptions are indicating your furnace requires immediate professional support.

Here are some of the most reported furnace noises and what they could mean. If your furnace is making an odd noise, our friendly heating pros are here to assist with the best furnace repair in Cedar Rapids, Iowa.

1. Furnace Making a Banging Noise

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

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over time, so that’s why it’s critical to schedule yearly furnace maintenance with Ilten's. One of the tasks our technicians do during this appointment is clean your furnace’s burners. When this part gets dirty, you could hear your furnace making a loud rumbling noise when ignition takes more time. The resulting gas buildup may fracture your furnace’s heat exchanger, where natural gas changes into warmth. Any fractures in it can leak carbon monoxide, which is normally emitted outdoors. This toxic gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Ilten's urges you to turn it off and reaching us at 319-208-2351. Significant natural gas in your furnace or a fractured heat exchanger are critical issues that should get immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver heated air around your home. If the ductwork wasn’t put in right or is getting dated, it can make a lot of noise when your furnace is on. This can be the issue if your furnace makes a banging noise when it shuts off. Call Ilten's at 319-208-2351 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace relies on an internal transformer to run on the proper 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 works with a blower motor, which moves warm or chilly air throughout your rooms, and a capacitor, which turns on the motor. If either of these pieces are fading, 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 minor, like an unfastened 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 319-208-2351 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to alert you it could use some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn down or a bearing might need to be greased. We realize that maintenance often slips your mind, but our technicians 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 the result of an air leak in your ductwork. You may also hear whistling while the furnace is on if a floor vent isn’t tight. If you’ve checked your vents but are still noticing noise, Ilten's can provide support. It’s critical to get loose ductwork repaired quickly, as it can create comfort issues in your home and drive up your utility expenses.

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 usually means there’s an issue with your furnace’s blower. Turn off your furnace off now and contact our pros at 319-208-2351 for help.

When you’re noticing an uncommon noise from your furnace, Ilten's is ready to support you. Contact us at 319-208-2351 to request your furnace repair appointment now.