When your furnace is working correctly, it should give warm air without generating too much disruption. While it’s expected to hear your furnace making noise as it turns on, other sounds are showing your furnace needs immediate professional help.

Here are some of the most reported furnace noises and what they can be indicating. If your furnace is making an atypical noise, our friendly heating specialists are here to help with the best furnace repair in Lawrence, Kansas.

1. Furnace Making a Banging Noise

You might have a serious problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be a few problems. These range from gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets filthy as time passes, so that’s why it’s important to schedule yearly furnace maintenance with Scott Temperature. One of the jobs our professionals do during this work is clean your furnace’s burners. When this part gets grimy, you may hear your furnace making a loud rumbling noise if ignition is delayed. The following gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into heat. Any fractures in it can emit carbon monoxide, which is regularly released away from your home. This toxic gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Scott Temperature advises turning it off and reaching us at 785-269-0465. Too much natural gas in your furnace or a broken heat exchanger are dangerous troubles that necessitate immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver warm air throughout your residence. If the ductwork wasn’t installed properly or is aging, it can be noisy when your furnace runs. This could be the case if your furnace makes a banging noise when it shuts off. Get in touch with Scott Temperature at 785-269-0465 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace depends on an internal transformer to run on the proper voltage. If wires or the box needs to be tightened, you could notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends warm or cooled air across your residence, and a capacitor, which turns on the motor. If either of these parts are fading, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be due to something small, like an unfastened screw, or something serious, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating professionals at 785-269-0465 for help.

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 needs some TLC. If you’ve skipped furnace maintenance recently, belts could be worn down or a bearing could need to be lubricated. We realize that maintenance frequently slips your mind, but our technicians can get your furnace operating quietly again rapidly.

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 working if a floor vent is loose. If you’ve checked your vents but are still sensing noise, Scott Temperature can provide support. It’s important to get loose ductwork fixed quickly, since it can result in comfort issues in your home and increase your utility expenses.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal noise often means there’s a problem with your furnace’s blower. Switch off your furnace off right away and contact our pros at 785-269-0465 for help.

When you’re getting an uncommon noise from your furnace, Scott Temperature is available to provide assistance. Contact us at 785-269-0465 to book your furnace repair appointment right away.