When your furnace is running properly, it should provide warm air without generating too much disruption. While it’s normal to notice your furnace making noise as it begins running, other noises are signaling your furnace should get immediate professional support.

Here are some of the most frequent furnace noises and what they can be signaling. If your furnace is making a strange noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Crown Point, Indiana.

1. Furnace Making a Banging Noise

You might have a serious problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it may signal there could be several problems. These range from gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over the years, so that’s why it’s important to set seasonal furnace maintenance with Struven Heating & Cooling. One of the jobs our technicians perform during this work is clean your furnace’s burners. When this part gets dirty, you may hear your furnace making a loud rumbling noise if ignition takes longer than normal. The subsequent gas buildup can crack your furnace’s heat exchanger, where natural gas transforms into warm air. Any cracks in it can discharge carbon monoxide, which is normally emitted outdoors. This dangerous gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Struven Heating & Cooling urges you to turn it off and calling us at 219-292-0956. Too much natural gas in your furnace or a broken heat exchanger are serious problems that require fast service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move hot air throughout your house. If the ductwork wasn’t put in correctly or is aging, it can be noisy when your furnace is heating. This could be the problem if your furnace makes a banging noise when it shuts off. Contact Struven Heating & Cooling at 219-292-0956 and we’ll determine 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 often is telling you there’s an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to run on the right voltage. If wires or the box needs to be tightened, you may detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends hot or cooled air around your residence, and a capacitor, which turns on the motor. If either of these parts are going out, they will buzz when the furnace starts.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it can be the result of 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 getting in touch with our heating specialists at 219-292-0956 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to alert you it needs some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn down or a bearing might need to be lubricated. We know that maintenance sometimes slips your mind, but our techs can get your furnace running quietly again quickly.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You might also hear whistling while the furnace is operating if a floor vent isn’t tight. If you’ve looked at your vents but are still sensing noise, Struven Heating & Cooling can provide support. It’s important to get loose ductwork repaired quickly, because it can result in comfort problems in your residence and inflate your gas bills.

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 racket often means there’s a problem with your furnace’s blower. Turn off your furnace off promptly and contact us at 219-292-0956 for support.

When you’re hearing an atypical noise from your furnace, Struven Heating & Cooling is ready to help. Contact us at 219-292-0956 to schedule your furnace repair appointment today.