When your furnace is running properly, it should provide heat without making too much noise. While it’s expected to hear your furnace making noise as it starts up, other disruptions are indicating your furnace requires immediate professional support.

Here are some of the most common furnace noises and what they can be signaling. If your furnace is making an odd noise, our friendly heating specialists are here to help with the best furnace repair in West Columbia, South Carolina.

1. Furnace Makes Banging or Knocking Sounds

You may have an urgent situation on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate there could be a couple of problems. These involve 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 important to schedule routine furnace maintenance with Tri City Fuel & Heating. One of the jobs our techs do during this work is clean your furnace’s burners. When this part gets grubby, you could hear your furnace making a loud rumbling noise after ignition takes more time. The resulting gas buildup may crack your furnace’s heat exchanger, where natural gas transforms into heat. Any breaks in it can emit carbon monoxide, which is regularly released outside. This hazardous gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Tri City Fuel & Heating recommends turning it off and calling us at 803-265-4208. Excessive natural gas in your furnace or a ruptured heat exchanger are serious issues that require immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver hot air around your home. If the ductwork wasn’t installed right or is getting old, it can be noisy when your furnace is heating. This can be the problem if your furnace makes a banging noise when it shuts off. Contact Tri City Fuel & Heating at 803-265-4208 and we’ll figure out the problem.

2. Furnace Buzzes Constantly

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

Your furnace uses an internal transformer to operate on the proper 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 moves warm or cooled air across your residence, and a capacitor, which starts the motor. If either of these pieces are fading, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be due to something little, like an unsecure screw, or something critical, like a broken part. In either case, we recommend shutting off your furnace and calling our heating specialists at 803-265-4208 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 could use some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn out or a bearing may need to be greased. We are aware that maintenance frequently slips your mind, but our technicians can get your furnace heating quietly again rapidly.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You could also hear whistling while the furnace is operating if a floor vent isn’t tight. If you’ve checked your vents but are still sensing noise, Tri City Fuel & Heating can help. It’s important to get loose ductwork taken care of fast, since it can make comfort troubles in your home and drive up your utility costs.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not an encouraging sign if you hear your furnace making a grinding noise. This metal-on-metal noise often means there’s trouble with your furnace’s blower. Shut down your furnace off right away and contact our professionals at 803-265-4208 for assistance.

When you’re getting a strange noise from your furnace, Tri City Fuel & Heating is ready to provide assistance. Contact us at 803-265-4208 to schedule your furnace repair appointment right away.