When your furnace is operating like it should, it should deliver warm air without creating too much disruption. While it’s expected to hear your furnace making noise as it begins running, other sounds are signaling your furnace needs immediate professional support.

Here are some of the most frequent furnace noises and what they could 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 Zelienople, Pennsylvania.

1. Furnace Making a Banging Noise

You might have a serious situation on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a couple of problems. These involve gas building up in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over the years, so that’s why it’s essential to set yearly furnace maintenance with Knoechel Heating. One of the tasks our professionals complete during this appointment is clean your furnace’s burners. When this part gets grimy, you could hear your furnace making a loud rumbling noise if ignition takes more time. The ensuing gas buildup may crack your furnace’s heat exchanger, where natural gas changes into warmth. Any cracks in it can emit carbon monoxide, which is ordinarily released outside. This dangerous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Knoechel Heating urges you to turn it off and reaching us at 724-425-5852. Significant natural gas in your furnace or a ruptured heat exchanger are critical troubles that require fast service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver hot air throughout your residence. If the ductwork wasn’t put in correctly or is getting old, it can be noisy when your furnace runs. This might be the case if your furnace makes a banging noise when it shuts off. Call Knoechel Heating at 724-425-5852 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

If you observe your furnace making a buzzing noise, don’t delay calling us. A buzzing sound usually is telling you there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to work on the proper voltage. If wires or the box is loose, you could notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves heated or cooled air throughout your space, and a capacitor, which triggers the motor. If either of these parts are failing, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be related to something little, like a loose screw, or something critical, like a broken component. In either case, we urge you to shut your furnace off and getting in touch with our heating specialists at 724-425-5852 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to get your attention it needs some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn down or a bearing may need to be greased. We are aware that maintenance often slips your mind, but our techs can get your furnace heating quietly again fast.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You could also notice whistling while the furnace is running if a floor vent isn’t tight. If you’ve examined your vents but are still sensing whistling, Knoechel Heating can assist you. It’s essential to get loose ductwork repaired fast, since it can result in comfort problems in your house and drive up your energy bills.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal sound usually means there’s a problem with your furnace’s blower. Shut down your furnace off now and contact us at 724-425-5852 for support.

When you’re hearing a strange noise from your furnace, Knoechel Heating is available to support you. Contact us at 724-425-5852 to schedule your furnace repair appointment now.