When your furnace is working like it should, it should provide warmth without making too much sound. While it’s normal to catch your furnace making noise as it begins running, other noises are indicating your furnace requires immediate professional assistance.

Here are some of the most reported furnace noises and what they could mean. If your furnace is making an odd noise, our friendly heating pros are here to assist with the best furnace repair in New Castle, Pennsylvania.

1. Furnace Making a Banging Noise

You might have a serious situation on your hands if you’re detecting 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 include gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy as time passes, so that’s why it’s critical to set annual furnace maintenance with Central Heating & Plumbing. One of the things our professionals perform during this work is clean your furnace’s burners. When this part gets grubby, you might hear your furnace making a loud rumbling noise if ignition is delayed. The resulting gas buildup may fracture your furnace’s heat exchanger, where natural gas changes into warmth. Any breaks in it can leak carbon monoxide, which is ordinarily emitted outdoors. This hazardous gas can be deadly in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Central Heating & Plumbing recommends turning it off and contacting us at 724-401-1843. Significant natural gas in your furnace or a fractured heat exchanger are serious issues that should get fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide hot air throughout your residence. If the ductwork wasn’t put in correctly or is getting old, it can be noisy when your furnace is heating. This can be the case if your furnace makes a banging noise when it shuts off. Contact Central Heating & Plumbing at 724-401-1843 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace uses an internal transformer to work on the proper voltage. If wires or the box is loose, you may notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or cold air around your rooms, and a capacitor, which turns on the motor. If either of these components are going out, they will buzz when the furnace switches on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it may be the result of something small, like a loose screw, or something serious, like a broken component. In either case, we urge you to shut your furnace off and contacting our heating pros at 724-401-1843 for assistance.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s making an effort to alert you it requires some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing may need to be lubricated. We know that maintenance sometimes slips your mind, but our professionals can get your furnace operating quietly again rapidly.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You could also notice whistling while the furnace is working if a floor vent is loose. If you’ve examined your vents but are still sensing noise, Central Heating & Plumbing can help. It’s critical to get loose ductwork fixed without delay, as it can make comfort problems in your home and inflate your utility costs.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal sound usually means there’s trouble with your furnace’s blower. Shut down your furnace off immediately and reach our professionals at 724-401-1843 for support.

When you’re hearing an uncommon noise from your furnace, Central Heating & Plumbing is available to provide assistance. Contact us at 724-401-1843 to book your furnace repair appointment right away.