When your furnace is operating properly, it should give heat without creating too much noise. While it’s common to hear your furnace making noise as it turns on, other sounds are signaling your furnace needs immediate professional help.

Here are some of the most common furnace noises and what they could be signaling. If your furnace is making a weird noise, our friendly heating specialists are here to help with the best furnace repair in Eastland, Texas.

1. Furnace Makes Banging or Knocking Sounds

You might have an urgent issue on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be a couple of problems. These include gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over time, so that’s why it’s essential to schedule seasonal furnace maintenance with J & J Air Conditioning. One of the things our professionals perform during this work is clean your furnace’s burners. When this part gets grubby, you might hear your furnace making a loud rumbling noise when ignition is delayed. The subsequent gas buildup may break your furnace’s heat exchanger, where natural gas turns into warmth. Any cracks in it can leak carbon monoxide, which is normally released away from your home. This dangerous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, J & J Air Conditioning urges you to turn it off and calling us at 254-355-3833. Excessive natural gas in your furnace or a cracked heat exchanger are serious issues that necessitate fast service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver warm air across your house. If the ductwork wasn’t put in properly or is getting old, it can make a lot of noise when your furnace runs. This can be the problem if your furnace makes a banging noise when it shuts off. Get in touch with J & J Air Conditioning at 254-355-3833 and we’ll determine the problem.

2. Furnace Buzzes Constantly

If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound frequently means there’s an electrical issue, 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 is loose, you could notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends hot or chilly air throughout your home, and a capacitor, which starts 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 can be related to something small, like a loose screw, or something major, like a broken piece. In either case, we advise shutting your furnace off and getting in touch with our heating pros at 254-355-3833 for support.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s trying to tell you it requires some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn down or a bearing could need to be greased. We know that maintenance frequently 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 detecting your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You might also be aware of whistling while the furnace is operating if a floor vent isn’t tight. If you’ve checked your vents but are still sensing sound, J & J Air Conditioning can provide support. It’s important to get loose ductwork taken care of without delay, because it can make comfort troubles in your home and inflate your heating costs.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal sound often means there’s an issue with your furnace’s blower. Shut down your furnace off right away and call us at 254-355-3833 for assistance.

When you’re noticing a strange noise from your furnace, J & J Air Conditioning is ready to support you. Contact us at 254-355-3833 to schedule your furnace repair appointment right away.