When your furnace is running properly, it should provide warmth without generating too much disruption. While it’s expected to notice your furnace making noise as it starts up, other noises are showing your furnace requires immediate professional assistance.

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

1. Furnace Makes a Banging Sound

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

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy over time, so that’s why it’s critical to set routine furnace maintenance with Ambience HVAC, Inc.. One of the jobs our technicians do during this work is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise when ignition is delayed. The subsequent gas buildup can fracture your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can emit carbon monoxide, which is regularly released away from your home. This dangerous gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Ambience HVAC, Inc. urges you to turn it off and calling us at 302-239-HVAC (4822). Excessive natural gas in your furnace or a cracked heat exchanger are critical troubles that necessitate fast attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide hot air around your home. If the ductwork wasn’t installed right or is getting dated, it can be noisy when your furnace is on. This could be the problem if your furnace makes a banging noise when it shuts off. Call Ambience HVAC, Inc. at 302-239-HVAC (4822) and we’ll determine the problem.

2. Furnace Buzzes Constantly

If you observe your furnace making a buzzing noise, don’t wait to call us. A buzzing sound typically indicates an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to operate on the right voltage. If wires or the box needs to be tightened, you may notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cold air across your house, and a capacitor, which starts the motor. If either of these components are fading, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it could be related to something small, like a loose screw, or something critical, like a broken component. In either case, we advise shutting your furnace off and calling our heating specialists at 302-239-HVAC (4822) for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to alert you it requires some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing may need to be lubed. We are aware that maintenance frequently slips your mind, but our pros can get your furnace operating quietly again quickly.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You may also hear whistling while the furnace is working if a floor vent isn’t secure. If you’ve looked at your vents but are still sensing noise, Ambience HVAC, Inc. can help. It’s critical to get loose ductwork fixed quickly, as it can result in comfort problems in your residence and increase your utility costs.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not an encouraging sign if you hear your furnace making a grinding noise. This metal-on-metal noise often means there’s an issue with your furnace’s blower. Shut down your furnace off immediately and reach our professionals at 302-239-HVAC (4822) for support.

When you’re hearing an uncommon noise from your furnace, Ambience HVAC, Inc. is ready to provide assistance. Contact us at 302-239-HVAC (4822) to schedule your furnace repair appointment right away.