When your furnace is working like it should, it should give warmth without creating too much sound. While it’s common to catch your furnace making noise as it starts up, other noises are indicating your furnace needs immediate professional help.

Here are some of the most common furnace noises and what they could be indicating. If your furnace is making an atypical noise, our friendly heating professionals are here to help with the best furnace repair in Port St. Lucie, Florida.

1. Furnace Making a Banging Noise

You could have an urgent problem on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be a couple of problems. These involve gas accumulating in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over time, so that’s why it’s important to book yearly furnace maintenance with Custom Air Systems Inc. One of the things our pros perform during this service is clean your furnace’s burners. When this part gets dirty, you might hear your furnace making a loud rumbling noise after ignition takes more time. The ensuing gas buildup can break your furnace’s heat exchanger, where natural gas transforms into warm air. Any fractures in it can discharge carbon monoxide, which is ordinarily vented outside. This dangerous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Custom Air Systems Inc recommends turning it off and calling us at 772-247-2283. Excessive natural gas in your furnace or a fractured heat exchanger are critical problems that should get immediate attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move hot air around your house. If the ductwork wasn’t installed correctly or is getting dated, it can make a lot of noise when your furnace runs. This might be the issue if your furnace makes a banging noise when it shuts off. Call Custom Air Systems Inc at 772-247-2283 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

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

Your furnace depends on an internal transformer to operate on the proper 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 uses a blower motor, which sends heated or cold air throughout your space, and a capacitor, which starts the motor. If either of these pieces are failing, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be due to something small, like a loose screw, or something serious, like a broken piece. In either case, we recommend shutting off your furnace and contacting our heating pros at 772-247-2283 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 trying to get your attention it needs some TLC. If you’ve forgotten furnace maintenance the last couple of years, belts could be worn out or a bearing might need to be lubed. We are aware that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again quickly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re hearing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You could also be aware of whistling while the furnace is running if a floor vent is loose. If you’ve looked at your vents but are still noticing sound, Custom Air Systems Inc can provide support. It’s essential to get loose ductwork repaired without delay, because it can create comfort issues in your residence and inflate your heating bills.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not an encouraging 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 us at 772-247-2283 for support.

When you’re getting an atypical noise from your furnace, Custom Air Systems Inc is here to help. Contact us at 772-247-2283 to schedule your furnace repair appointment right away.