When your furnace is working properly, it should provide warmth without generating too much sound. While it’s expected to hear your furnace making noise as it begins running, other disruptions are signaling your furnace should get immediate professional assistance.

Here are some of the most frequent furnace noises and what they can be signaling. If your furnace is making a weird noise, our friendly heating professionals are here to help with the best furnace repair in Brookfield, Connecticut.

1. Furnace Making a Banging Noise

You may have a critical situation on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be a few problems. These involve gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over time, so that’s why it’s essential to set annual furnace maintenance with Central Air LLC. One of the things our professionals perform during this service is clean your furnace’s burners. When this piece gets grimy, you may hear your furnace making a loud rumbling noise if ignition takes longer than normal. The resulting gas buildup might break your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can discharge carbon monoxide, which is regularly vented outdoors. This toxic gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Central Air LLC recommends turning it off and contacting us at 203-357-5913. Too much natural gas in your furnace or a broken heat exchanger are critical problems that should get fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move heated air throughout your residence. If the ductwork wasn’t designed correctly or is aging, it can make a lot of noise when your furnace runs. This might be the problem if your furnace makes a banging noise when it shuts off. Get in touch with Central Air LLC at 203-357-5913 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace uses an internal transformer to run on the right voltage. If wires or the box isn’t tight enough, you might detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes warm or chilly air around your residence, and a capacitor, which starts the motor. If either of these pieces are going out, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be the result of something minor, like an unsecure screw, or something critical, like a broken component. In either case, we advise shutting your furnace off and getting in touch with our heating professionals at 203-357-5913 for assistance.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s attempting to get your attention it needs some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn down or a bearing might need to be lubricated. We realize that maintenance frequently slips your mind, but our technicians can get your furnace running quietly again quickly.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You may also be aware of whistling while the furnace is running if a floor vent isn’t tight. If you’ve checked your vents but are still noticing whistling, Central Air LLC can help. It’s critical to get loose ductwork repaired without delay, as it can create comfort troubles in your residence and increase your energy bills.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you hear your furnace making a grinding noise. This metal-on-metal noise typically means there’s an issue with your furnace’s blower. Shut down your furnace off promptly and contact our professionals at 203-357-5913 for help.

When you’re getting an uncommon noise from your furnace, Central Air LLC is ready to help. Contact us at 203-357-5913 to request your furnace repair appointment right away.