When your furnace is working properly, it should deliver warmth without creating too much disruption. While it’s expected to catch your furnace making noise as it turns on, other disruptions are indicating your furnace requires immediate professional help.

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

1. Furnace Making a Banging Noise

You might have a serious problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be several problems. These involve gas increasing in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy as time passes, so that’s why it’s important to set seasonal furnace maintenance with Schraer Heating & Air Conditioning. One of the tasks our techs complete during this appointment is clean your furnace’s burners. When this component gets dirty, you might hear your furnace making a loud rumbling noise after ignition takes longer than normal. The ensuing gas buildup may crack your furnace’s heat exchanger, where natural gas changes into warmth. Any cracks in it can discharge carbon monoxide, which is normally released outdoors. This hazardous gas can be deadly in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Schraer Heating & Air Conditioning urges you to turn it off and calling us at 636-456-5041. Too much natural gas in your furnace or a fractured heat exchanger are hazardous troubles that should get prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide hot air around your residence. If the ductwork wasn’t put in right or is getting dated, it can make a lot of noise when your furnace is on. This might be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Schraer Heating & Air Conditioning at 636-456-5041 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

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 uses an internal transformer to run on the proper voltage. If wires or the box isn’t tight enough, you may hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves heated or chilly air across your space, and a capacitor, which turns on the motor. If either of these parts are going out, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be due to something minor, like an unfastened screw, or something major, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating professionals at 636-456-5041 for support.

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 requires some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn down or a bearing may need to be greased. We know that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s frequently because of an air leak in your ductwork. You might also be aware of whistling while the furnace is working if a floor vent isn’t secure. If you’ve checked your vents but are still sensing noise, Schraer Heating & Air Conditioning can assist you. It’s important to get loose ductwork taken care of quickly, as it can make comfort troubles in your home and drive up your gas costs.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you detect your furnace making a grinding noise. This metal-on-metal noise typically means there’s a problem with your furnace’s blower. Switch off your furnace off now and reach our pros at 636-456-5041 for assistance.

When you’re getting an uncommon noise from your furnace, Schraer Heating & Air Conditioning is here to provide assistance. Contact us at 636-456-5041 to book your furnace repair appointment right away.