When your furnace is operating correctly, it should provide heat without generating too much noise. While it’s common to notice your furnace making noise as it begins running, other noises are indicating your furnace needs immediate professional support.

Here are some of the most frequent furnace noises and what they could be signaling. If your furnace is making a weird noise, our friendly heating pros are here to help with the best furnace repair in Shamokin and Sunbury, Pennsylvania.

1. Furnace Makes Banging or Knocking Sounds

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

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over the years, so that’s why it’s essential to set annual furnace maintenance with LTS Plumbing & Heating Inc.. One of the jobs our professionals complete during this appointment is clean your furnace’s burners. When this part gets grimy, you might hear your furnace making a loud rumbling noise if ignition takes more time. The subsequent gas buildup can fracture your furnace’s heat exchanger, where natural gas transforms into heat. Any fractures in it can leak carbon monoxide, which is normally released away from your home. This toxic gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, LTS Plumbing & Heating Inc. urges you to turn it off and contacting us at 570-648-0748. Significant natural gas in your furnace or a cracked heat exchanger are serious troubles that necessitate fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide hot air throughout your residence. If the ductwork wasn’t put in correctly or is aging, it can make a lot of noise when your furnace runs. This may be the case if your furnace makes a banging noise when it shuts off. Contact LTS Plumbing & Heating Inc. at 570-648-0748 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 usually indicates an electrical issue, 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 detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes hot or chilly air across your house, and a capacitor, which starts the motor. If either of these parts are failing, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it could be related to something minor, like an unfastened screw, or something critical, like a broken part. In either case, we urge you to shut your furnace off and calling our heating specialists at 570-648-0748 for help.

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 alert you it needs some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing might need to be lubed. We know that maintenance sometimes slips your mind, but our technicians can get your furnace running quietly again fast.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re hearing your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You may also notice whistling while the furnace is working if a floor vent isn’t secure. If you’ve checked your vents but are still hearing whistling, LTS Plumbing & Heating Inc. can help. It’s critical to get loose ductwork repaired fast, because it can create comfort issues in your house and inflate your heating expenses.

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 sound often means there’s trouble with your furnace’s blower. Turn off your furnace off now and contact our pros at 570-648-0748 for assistance.

When you’re getting an atypical noise from your furnace, LTS Plumbing & Heating Inc. is here to provide assistance. Contact us at 570-648-0748 to request your furnace repair appointment today.