When your furnace is operating like it should, it should deliver warmth without creating too much sound. While it’s expected to hear your furnace making noise as it starts up, other noises are signaling your furnace needs immediate professional support.

Here are some of the most reported furnace noises and what they can be indicating. If your furnace is making a strange noise, our friendly heating professionals are here to help with the best furnace repair in Moline, Illinois.

1. Furnace Makes a Banging Sound

You could have an urgent issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it might signal there could be a couple of problems. These range from gas increasing in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system gets dirty over the years, so that’s why it’s important to set yearly furnace maintenance with J.L. Brady Company LLC. One of the jobs our pros do during this service is clean your furnace’s burners. When this component gets grimy, you may hear your furnace making a loud rumbling noise after ignition takes more time. The following gas buildup may crack your furnace’s heat exchanger, where natural gas changes into warmth. Any fractures in it can discharge carbon monoxide, which is regularly released away from your home. This toxic gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, J.L. Brady Company LLC urges you to turn it off and calling us at 309-517-7511. Too much natural gas in your furnace or a broken heat exchanger are dangerous issues that necessitate immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver warm air throughout your home. If the ductwork wasn’t designed right or is getting old, it can be loud when your furnace is on. This could be the case if your furnace makes a banging noise when it shuts off. Contact J.L. Brady Company LLC at 309-517-7511 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound often is telling you there’s an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to work on the right voltage. If wires or the box needs to be tightened, you could hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves heated or cooled air throughout your rooms, and a capacitor, which starts the motor. If either of these components are failing, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be related to something minor, like an unfastened screw, or something serious, like a broken piece. In either case, we recommend shutting off your furnace and getting in touch with our heating specialists at 309-517-7511 for support.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to alert you it needs some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing may need to be lubricated. We know that maintenance often slips your mind, but our pros can get your furnace running quietly again fast.

5. Furnace Making a Whistling Noise

When you’re hearing 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 isn’t tight. If you’ve checked your vents but are still hearing noise, J.L. Brady Company LLC can help. It’s critical to get loose ductwork repaired fast, as it can make comfort troubles in your residence and increase your utility expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal sound typically means there’s a problem with your furnace’s blower. Switch off your furnace off promptly and reach us at 309-517-7511 for help.

When you’re hearing a weird noise from your furnace, J.L. Brady Company LLC is available to help. Contact us at 309-517-7511 to request your furnace repair appointment today.