When your furnace is operating properly, it should provide heat without generating too much noise. While it’s common to catch your furnace making noise as it turns on, other noises are indicating your furnace requires immediate professional assistance.

Here are some of the most reported furnace noises and what they can be indicating. If your furnace is making an atypical noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Bloomfield, Indiana.

1. Furnace Makes a Banging Sound

You could have an urgent situation 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 building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty as time passes, so that’s why it’s essential to schedule routine furnace maintenance with Stanford Heating & Cooling. One of the tasks our techs complete during this work is clean your furnace’s burners. When this piece gets grimy, you may hear your furnace making a loud rumbling noise after ignition takes more time. The resulting gas buildup might fracture your furnace’s heat exchanger, where natural gas turns into warm air. Any cracks in it can emit carbon monoxide, which is ordinarily emitted outside. This dangerous gas can be lethal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Stanford Heating & Cooling recommends turning it off and calling us at 812-825-8695. Significant natural gas in your furnace or a fractured heat exchanger are serious issues that require prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver heated air around your residence. If the ductwork wasn’t installed properly or is aging, it can be noisy when your furnace is on. This may be the issue if your furnace makes a banging noise when it shuts off. Contact Stanford Heating & Cooling at 812-825-8695 and we’ll figure out the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace depends on an internal transformer to run on the proper voltage. If wires or the box needs to be tightened, you might notice a low humming noise in the furnace when off. Your furnace also has a blower motor, which moves warm or cold air throughout your residence, and a capacitor, which triggers the motor. If either of these components 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 small, like an unsecure screw, or something serious, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating pros at 812-825-8695 for help.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying to tell you it needs some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn out or a bearing might need to be lubed. We are aware that maintenance sometimes slips your mind, but our technicians can get your furnace running quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You could also notice whistling while the furnace is working if a floor vent isn’t tight. If you’ve looked at your vents but are still noticing whistling, Stanford Heating & Cooling can help. It’s essential to get loose ductwork fixed quickly, as it can create comfort issues in your home and increase your utility expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal sound often means there’s a problem with your furnace’s blower. Turn off your furnace off immediately and call us at 812-825-8695 for assistance.

When you’re hearing a strange noise from your furnace, Stanford Heating & Cooling is available to provide assistance. Contact us at 812-825-8695 to book your furnace repair appointment right away.