When your furnace is running like it should, it should provide heat without making too much disruption. While it’s normal to catch your furnace making noise as it starts up, other sounds are indicating your furnace needs immediate professional assistance.

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

1. Furnace Making a Banging Noise

You may have a critical issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be a few problems. These range from gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy as time passes, so that’s why it’s important to set yearly furnace maintenance with Stanford Heating & Cooling. One of the tasks our technicians do during this work is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise after ignition is delayed. The following gas buildup may fracture your furnace’s heat exchanger, where natural gas changes into heat. Any breaks in it can discharge carbon monoxide, which is ordinarily emitted outdoors. This dangerous gas can be deadly in large concentrations.

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

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to move warm air around your residence. If the ductwork wasn’t installed right or is aging, it can be loud when your furnace is on. This can 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 pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound typically means there’s an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to work on the correct voltage. If wires or the box needs to be tightened, you could hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves hot or chilly air across your home, and a capacitor, which turns on the motor. If either of these components are failing, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be due to something small, like an unsecure screw, or something serious, like a broken component. In either case, we recommend shutting off your furnace and calling our heating specialists at 812-825-8695 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to tell you it requires some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn out or a bearing may need to be lubricated. We are aware that maintenance sometimes slips your mind, but our techs can get your furnace operating quietly again rapidly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You may also notice whistling while the furnace is working if a floor vent isn’t tight. If you’ve checked your vents but are still hearing whistling, Stanford Heating & Cooling can help. It’s essential to get loose ductwork taken care of without delay, since it can create comfort troubles in your house and inflate your heating 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 sound frequently means there’s a problem with your furnace’s blower. Turn off your furnace off immediately and call our pros at 812-825-8695 for help.

When you’re getting an atypical noise from your furnace, Stanford Heating & Cooling is available to support you. Contact us at 812-825-8695 to request your furnace repair appointment today.