When your furnace is operating properly, it should provide heat without creating too much sound. While it’s expected to hear your furnace making noise as it starts up, other disruptions are showing your furnace needs immediate professional support.

Here are some of the most common furnace noises and what they might be indicating. If your furnace is making a strange noise, our friendly heating pros are here to fix the problem with the best furnace repair in Lancaster, Ohio.

1. Furnace Making a Banging Noise

You may have a critical issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate there could be several problems. These involve gas accumulating in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty as time passes, so that’s why it’s essential to book seasonal furnace maintenance with Fairfield Heating & Cooling. One of the jobs our technicians perform during this work is clean your furnace’s burners. When this part gets dirty, you may hear your furnace making a loud rumbling noise when ignition takes more time. The resulting gas buildup may break your furnace’s heat exchanger, where natural gas changes into heat. Any fractures in it can leak carbon monoxide, which is ordinarily emitted away from your home. This toxic gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Fairfield Heating & Cooling recommends turning it off and reaching us at 740-331-4331. Excessive natural gas in your furnace or a broken heat exchanger are serious troubles that should get prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide hot air around your house. If the ductwork wasn’t put in correctly or is getting old, it can be noisy when your furnace is on. This may be the case if your furnace makes a banging noise when it shuts off. Contact Fairfield Heating & Cooling at 740-331-4331 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

If you notice your furnace making a buzzing noise, don’t delay calling us. A buzzing sound often means there’s an electrical problem, 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 detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or cold air throughout your residence, and a capacitor, which turns on the motor. If either of these pieces are fading, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be the result of something minor, like a loose screw, or something major, like a broken piece. In either case, we urge you to shut your furnace off and getting in touch with our heating professionals at 740-331-4331 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to get your attention it requires some TLC. If you’ve skipped 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 technicians can get your furnace running 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 working if a floor vent isn’t secure. If you’ve examined your vents but are still noticing whistling, Fairfield Heating & Cooling can provide support. It’s essential to get loose ductwork taken care of fast, since it can result in comfort problems in your residence and increase your energy costs.

6. Furnace Making a Grinding Noise

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal sound frequently means there’s an issue with your furnace’s blower. Switch off your furnace off right away and contact us at 740-331-4331 for help.

When you’re noticing an uncommon noise from your furnace, Fairfield Heating & Cooling is here to provide assistance. Contact us at 740-331-4331 to request your furnace repair appointment now.