When your furnace is operating properly, it should deliver warm air without making too much disruption. While it’s common to catch your furnace making noise as it turns on, other noises are showing your furnace requires immediate professional support.

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 fix the problem with the best furnace repair in Eastland, Texas.

1. Furnace Makes Banging or Knocking Sounds

You may have a critical issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it might indicate there could be a few 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 critical to set annual furnace maintenance with J & J Air Conditioning. One of the tasks our technicians perform during this appointment is clean your furnace’s burners. When this component gets grimy, you might hear your furnace making a loud rumbling noise when ignition is delayed. The following gas buildup might crack your furnace’s heat exchanger, where natural gas turns into warm air. Any breaks in it can discharge carbon monoxide, which is normally emitted outdoors. This dangerous gas can be fatal in large concentrations.

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

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide hot air around your home. If the ductwork wasn’t put in correctly or is aging, it can be loud when your furnace is heating. This may be the issue if your furnace makes a banging noise when it shuts off. Call J & J Air Conditioning at 254-355-3833 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

If you hear your furnace making a buzzing noise, don’t wait to call us. A buzzing sound often indicates an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to work 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 has a blower motor, which sends hot or cooled air across your residence, and a capacitor, which turns on the motor. If either of these pieces 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 due to something small, like an unfastened screw, or something major, like a broken piece. In either case, we urge you to shut 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 going, it’s attempting to get your attention it could use some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing could need to be lubed. We are aware that maintenance frequently slips your mind, but our technicians can get your furnace running quietly again fast.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You might also be aware of whistling while the furnace is on if a floor vent isn’t tight. If you’ve examined your vents but are still sensing whistling, J & J Air Conditioning can help. It’s essential to get loose ductwork fixed fast, as it can result in comfort issues in your residence and drive up your gas expenses.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal noise often means there’s an issue with your furnace’s blower. Switch off your furnace off now and contact us at 254-355-3833 for assistance.

When you’re getting an uncommon noise from your furnace, J & J Air Conditioning is here to support you. Contact us at 254-355-3833 to request your furnace repair appointment now.