When your furnace is operating like it should, it should deliver warmth without generating too much sound. While it’s expected to notice your furnace making noise as it turns on, other sounds are indicating your furnace should get immediate professional help.

Here are some of the most common furnace noises and what they could mean. If your furnace is making a strange noise, our friendly heating pros are here to help with the best furnace repair in Moline, Illinois.

1. Furnace Making a Banging Noise

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

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over the years, so that’s why it’s essential to set annual furnace maintenance with Freed Heating & Air Conditioning. One of the jobs our professionals perform during this service is clean your furnace’s burners. When this piece gets grubby, you may hear your furnace making a loud rumbling noise after ignition takes longer than normal. The following gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into heat. Any breaks in it can leak carbon monoxide, which is regularly emitted away from your home. This dangerous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Freed Heating & Air Conditioning advises turning it off and reaching us at 309-323-9584. Significant natural gas in your furnace or a ruptured heat exchanger are dangerous problems that necessitate fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move warm air throughout your house. If the ductwork wasn’t designed properly or is getting old, it can be loud when your furnace runs. This may be the case if your furnace makes a banging noise when it shuts off. Contact Freed Heating & Air Conditioning at 309-323-9584 and we’ll figure out 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 usually is telling you there’s an electrical issue, 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 is loose, you may detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or chilly air around your house, and a capacitor, which turns on the motor. If either of these components are fading, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it could be related to something little, like an unfastened screw, or something major, like a broken piece. In either case, we advise shutting your furnace off and contacting our heating professionals at 309-323-9584 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to get your attention it needs 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 lubed. We are aware that maintenance frequently slips your mind, but our techs can get your furnace running quietly again fast.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You might also notice whistling while the furnace is on if a floor vent is loose. If you’ve checked your vents but are still hearing whistling, Freed Heating & Air Conditioning can provide support. It’s essential to get loose ductwork taken care of quickly, because it can result in comfort troubles in your house and inflate your gas costs.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal sound typically means there’s trouble with your furnace’s blower. Switch off your furnace off now and reach our professionals at 309-323-9584 for support.

When you’re noticing a weird noise from your furnace, Freed Heating & Air Conditioning is ready to provide assistance. Contact us at 309-323-9584 to request your furnace repair appointment now.