When your furnace is operating properly, it should give heat without generating too much sound. While it’s expected to notice your furnace making noise as it begins running, other noises are showing your furnace requires immediate professional assistance.

Here are some of the most common furnace noises and what they could be indicating. If your furnace is making a strange noise, our friendly heating pros are here to help with the best furnace repair in Bloomfield, Indiana.

1. Furnace Making a Banging Noise

You might 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 can indicate there could be several problems. These include gas increasing in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system turns filthy over the years, so that’s why it’s important to book yearly furnace maintenance with Stanford Heating & Cooling. One of the things our pros perform during this service is clean your furnace’s burners. When this part gets dirty, you may hear your furnace making a loud rumbling noise after ignition takes longer than normal. The ensuing gas buildup can break your furnace’s heat exchanger, where natural gas turns into warmth. Any breaks in it can leak carbon monoxide, which is normally vented outside. This toxic gas can be lethal in large concentrations.

If you’re hearing 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 ruptured heat exchanger are hazardous troubles that require prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver heated air across your home. If the ductwork wasn’t put in right or is aging, it can make a lot of noise when your furnace is heating. This might be the case if your furnace makes a banging noise when it shuts off. Get in touch with Stanford Heating & Cooling at 812-825-8695 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound often means there’s an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to operate on the correct voltage. If wires or the box is loose, you might notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves warm or chilly air across your home, and a capacitor, which starts the motor. If either of these components are fading, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be related to something little, like a loose screw, or something major, like a broken part. In either case, we recommend shutting off your furnace and getting in touch with our heating specialists 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 on, it’s attempting to get your attention it could use some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn down or a bearing might need to be lubricated. We know that maintenance sometimes slips your mind, but our pros can get your furnace operating quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You could also notice whistling while the furnace is operating if a floor vent isn’t tight. If you’ve checked your vents but are still hearing sound, Stanford Heating & Cooling can provide support. It’s critical to get loose ductwork repaired fast, since it can result in comfort issues in your house and drive up your energy costs.

6. Furnace Making a Grinding Noise

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal racket typically means there’s an issue with your furnace’s blower. Shut down your furnace off promptly and contact our professionals at 812-825-8695 for support.

When you’re hearing a weird noise from your furnace, Stanford Heating & Cooling is ready to help. Contact us at 812-825-8695 to request your furnace repair appointment right away.