When your furnace is running correctly, it should provide heat without making too much disruption. While it’s expected to notice your furnace making noise as it starts up, other sounds are indicating your furnace needs immediate professional help.

Here are some of the most frequent furnace noises and what they might be indicating. If your furnace is making a strange noise, our friendly heating professionals are here to help with the best furnace repair in West Columbia, South Carolina.

1. Furnace Makes Banging or Knocking Sounds

You may have a critical situation on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may indicate there could be several problems. These involve gas accumulating in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets filthy over the years, so that’s why it’s critical to book annual furnace maintenance with Tri City Fuel & Heating. One of the things our technicians do during this work is clean your furnace’s burners. When this piece gets grubby, you could hear your furnace making a loud rumbling noise after ignition takes longer than normal. The ensuing gas buildup can fracture your furnace’s heat exchanger, where natural gas changes into warm air. Any fractures in it can discharge carbon monoxide, which is regularly released outside. This toxic 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 contacting us at 803-265-4208. Excessive natural gas in your furnace or a broken heat exchanger are hazardous problems that should get fast attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to provide warm air around your house. If the ductwork wasn’t put in properly or is getting dated, it can be loud when your furnace runs. This may be the case if your furnace makes a banging noise when it shuts off. Get in touch with Tri City Fuel & Heating at 803-265-4208 and we’ll figure out the problem.

2. Furnace Buzzes Constantly

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

Your furnace depends on an internal transformer to operate 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 heated or cold air across your space, and a capacitor, which starts the motor. If either of these parts are going out, they will buzz when the furnace turns on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it could be the result of something little, like an unsecure screw, or something major, like a broken component. In either case, we recommend shutting off your furnace and contacting our heating specialists at 803-265-4208 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to alert you it could use some TLC. If you’ve forgotten furnace maintenance the past few years, belts could be worn down or a bearing could need to be lubricated. We know that maintenance often slips your mind, but our techs can get your furnace operating quietly again rapidly.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s likely the result of an air leak in your ductwork. You could also hear whistling while the furnace is on if a floor vent isn’t tight. If you’ve looked at your vents but are still noticing noise, Tri City Fuel & Heating can provide support. It’s essential to get loose ductwork fixed quickly, since it can result in comfort issues in your home and increase your utility expenses.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal noise frequently means there’s trouble with your furnace’s blower. Turn off your furnace off right away and reach our pros at 803-265-4208 for assistance.

When you’re getting an uncommon noise from your furnace, Tri City Fuel & Heating is available to help. Contact us at 803-265-4208 to book your furnace repair appointment now.