When your furnace is operating correctly, it should deliver warmth without generating too much disruption. While it’s normal to hear your furnace making noise as it starts up, other noises are indicating your furnace requires immediate professional help.

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

1. Furnace Makes Banging or Knocking Sounds

You could have an urgent problem 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 range from gas accumulating in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system turns grimy over time, so that’s why it’s important to schedule routine furnace maintenance with Franklin's Heating & Air Conditioning, Inc. One of the things our pros perform during this appointment is clean your furnace’s burners. When this piece gets grimy, you might hear your furnace making a loud rumbling noise when ignition takes longer than normal. The following gas buildup may break your furnace’s heat exchanger, where natural gas changes into heat. Any cracks in it can discharge carbon monoxide, which is normally released outdoors. This toxic gas can be deadly in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Franklin's Heating & Air Conditioning, Inc urges you to turn it off and calling us at 662-281-1231. Significant natural gas in your furnace or a fractured heat exchanger are serious problems that necessitate immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to move heated air around your house. If the ductwork wasn’t installed properly or is aging, it can be loud when your furnace is on. This could be the issue if your furnace makes a banging noise when it shuts off. Call Franklin's Heating & Air Conditioning, Inc at 662-281-1231 and we’ll pinpoint the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace relies on an internal transformer to work 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 works with a blower motor, which moves warm or cold air across your space, and a capacitor, which turns on the motor. If either of these components are going out, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be due to something little, like a loose screw, or something major, like a broken component. In either case, we urge you to shut your furnace off and contacting our heating specialists at 662-281-1231 for assistance.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s making an effort to get your attention it needs some TLC. If you’ve skipped furnace maintenance recently, belts could be worn out or a bearing might need to be lubed. We realize that maintenance frequently slips your mind, but our techs can get your furnace heating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s likely due to an air leak in your ductwork. You may also hear whistling while the furnace is on if a floor vent isn’t secure. If you’ve examined your vents but are still noticing sound, Franklin's Heating & Air Conditioning, Inc can help. It’s important to get loose ductwork repaired without delay, because it can create comfort problems in your home and inflate your energy expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal racket usually means there’s a problem with your furnace’s blower. Turn off your furnace off now and contact our pros at 662-281-1231 for assistance.

When you’re hearing an uncommon noise from your furnace, Franklin's Heating & Air Conditioning, Inc is here to help. Contact us at 662-281-1231 to request your furnace repair appointment today.