When your furnace is running like it should, it should give warmth without generating too much disruption. While it’s normal to hear your furnace making noise as it begins running, other noises are showing your furnace requires immediate professional help.

Here are some of the most common furnace noises and what they might be signaling. If your furnace is making a strange 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 could have a critical problem 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 couple of problems. These include gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over the years, so that’s why it’s essential to book routine furnace maintenance with J & J Air Conditioning. One of the jobs our technicians 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 when ignition is delayed. The following gas buildup might fracture your furnace’s heat exchanger, where natural gas turns into heat. Any breaks in it can leak carbon monoxide, which is regularly emitted outdoors. This hazardous gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, J & J Air Conditioning advises turning it off and reaching us at 254-355-3833. Significant natural gas in your furnace or a broken heat exchanger are critical issues that should get fast attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver hot air around your house. If the ductwork wasn’t put in right or is aging, it can be noisy when your furnace runs. This can be the case if your furnace makes a banging noise when it shuts off. Contact J & J Air Conditioning at 254-355-3833 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace uses an internal transformer to run on the right voltage. If wires or the box is loose, you could detect a low humming noise in the furnace when off. Your furnace also has a blower motor, which sends warm or chilly air throughout your residence, and a capacitor, which triggers the motor. If either of these parts are failing, they will buzz when the furnace switches on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it may be related to something little, like an unsecure screw, or something serious, like a broken piece. In either case, we recommend shutting off your furnace and contacting our heating pros at 254-355-3833 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s attempting to alert you it needs some TLC. If you’ve skipped furnace maintenance recently, belts could be worn down or a bearing may need to be greased. We know that maintenance sometimes slips your mind, but our techs can get your furnace operating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You could also be aware of whistling while the furnace is working if a floor vent isn’t tight. If you’ve checked your vents but are still noticing sound, J & J Air Conditioning can provide support. It’s critical to get loose ductwork taken care of quickly, as it can result in comfort issues in your residence and increase your heating expenses.

6. Furnace Making a 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 an issue with your furnace’s blower. Switch off your furnace off immediately and call us at 254-355-3833 for assistance.

When you’re noticing a weird noise from your furnace, J & J Air Conditioning is ready to help. Contact us at 254-355-3833 to request your furnace repair appointment today.