When your furnace is operating properly, it should give warmth without creating too much sound. While it’s common to notice your furnace making noise as it turns on, other noises are signaling your furnace requires immediate professional support.

Here are some of the most reported furnace noises and what they might be indicating. If your furnace is making an odd noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Smyrna, Delaware.

1. Furnace Makes a Banging Sound

You might 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 may signal there could be a few problems. These include gas increasing in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over time, so that’s why it’s essential to book routine furnace maintenance with Fletcher Plumbing, Heating & AC. One of the jobs our techs perform during this appointment is clean your furnace’s burners. When this part gets grimy, you could hear your furnace making a loud rumbling noise when ignition takes longer than normal. The subsequent gas buildup may break your furnace’s heat exchanger, where natural gas changes into warmth. Any cracks in it can discharge carbon monoxide, which is normally released outside. This hazardous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Fletcher Plumbing, Heating & AC advises turning it off and contacting us at 302-653-0503. Significant natural gas in your furnace or a fractured heat exchanger are dangerous problems that necessitate fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide hot air throughout your house. If the ductwork wasn’t designed correctly or is aging, it can make a lot of noise when your furnace is heating. This can be the case if your furnace makes a banging noise when it shuts off. Get in touch with Fletcher Plumbing, Heating & AC at 302-653-0503 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you notice your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound frequently means 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 isn’t tight enough, you could detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends heated or cooled air across your house, and a capacitor, which starts the motor. If either of these parts are going out, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it could be the result of something little, like an unsecure screw, or something major, like a broken part. In either case, we advise shutting your furnace off and calling our heating professionals at 302-653-0503 for assistance.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to alert you it needs some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn out or a bearing may need to be lubricated. We are aware that maintenance frequently slips your mind, but our technicians can get your furnace operating quietly again rapidly.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You could also notice whistling while the furnace is operating if a floor vent is loose. If you’ve looked at your vents but are still sensing noise, Fletcher Plumbing, Heating & AC can assist you. It’s critical to get loose ductwork taken care of without delay, since it can result in comfort problems in your home and increase your utility costs.

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 racket typically means there’s trouble with your furnace’s blower. Switch off your furnace off now and contact our pros at 302-653-0503 for help.

When you’re noticing a strange noise from your furnace, Fletcher Plumbing, Heating & AC is here to provide assistance. Contact us at 302-653-0503 to request your furnace repair appointment now.