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

Here are some of the most reported furnace noises and what they could mean. If your furnace is making an atypical noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Brookfield, Connecticut.

1. Furnace Making a Banging Noise

You might have a serious problem 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 involve gas accumulating in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets filthy over the years, so that’s why it’s critical to book annual furnace maintenance with Central Air LLC. One of the jobs our techs 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 after ignition takes longer than normal. The resulting gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into warm air. Any fractures in it can discharge carbon monoxide, which is normally vented away from your home. This toxic gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Central Air LLC urges you to turn it off and reaching us at 203-357-5913. Excessive natural gas in your furnace or a ruptured heat exchanger are serious problems that necessitate fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move warm air throughout your home. If the ductwork wasn’t designed correctly or is getting old, it can be noisy when your furnace is on. This may be the case 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 pinpoint the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace uses an internal transformer to operate on the correct voltage. If wires or the box needs to be tightened, you could notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes warm or chilly air across your rooms, and a capacitor, which starts the motor. If either of these parts are going out, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it can be related to something minor, like an unsecure screw, or something major, like a broken piece. In either case, we recommend shutting off your furnace and calling our heating professionals at 203-357-5913 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to alert you it could use some TLC. If you’ve neglected furnace maintenance recently, belts could be worn out or a bearing may need to be greased. We know that maintenance sometimes slips your mind, but our professionals can get your furnace operating quietly again fast.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You may also hear whistling while the furnace is operating if a floor vent isn’t tight. If you’ve checked your vents but are still sensing whistling, Central Air LLC can provide support. It’s important to get loose ductwork repaired without delay, since it can result in comfort problems in your home and drive up your utility expenses.

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 racket usually means there’s a problem with your furnace’s blower. Switch off your furnace off immediately and contact our professionals at 203-357-5913 for help.

When you’re noticing a weird noise from your furnace, Central Air LLC is here to help. Contact us at 203-357-5913 to request your furnace repair appointment today.