When your furnace is operating like it should, it should provide warm air without making too much disruption. While it’s normal to hear your furnace making noise as it turns on, other noises are indicating your furnace should get immediate professional support.

Here are some of the most common furnace noises and what they might be signaling. If your furnace is making a weird noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Mount Hope, West Virginia.

1. Furnace Makes Banging or Knocking Sounds

You may have a serious situation 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 couple of problems. These include gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes dirty over time, so that’s why it’s essential to schedule annual furnace maintenance with Appalachian Heating. One of the jobs our techs perform during this work is clean your furnace’s burners. When this component gets grubby, you might hear your furnace making a loud rumbling noise when ignition takes longer than normal. The ensuing gas buildup can break your furnace’s heat exchanger, where natural gas turns into warm air. Any breaks in it can leak carbon monoxide, which is regularly vented outdoors. This dangerous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Appalachian Heating recommends turning it off and calling us at 304-707-0600. Too much natural gas in your furnace or a ruptured heat exchanger are critical troubles that should get prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide warm air around your house. If the ductwork wasn’t designed properly or is getting dated, it can make a lot of noise when your furnace is on. This may be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Appalachian Heating at 304-707-0600 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

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

Your furnace uses an internal transformer to operate on the correct voltage. If wires or the box needs to be tightened, you could notice a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends warm or cooled air across your home, and a capacitor, which triggers the motor. If either of these components are failing, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be the result of something small, like a loose screw, or something critical, like a broken part. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 304-707-0600 for support.

4. Furnace Making a Squealing Noise

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

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re noticing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You may also be aware of whistling while the furnace is operating if a floor vent is loose. If you’ve examined your vents but are still sensing sound, Appalachian Heating can assist you. It’s critical to get loose ductwork repaired fast, since it can make comfort issues in your residence 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 sound frequently means there’s trouble with your furnace’s blower. Shut down your furnace off instantly and reach us at 304-707-0600 for assistance.

When you’re noticing an uncommon noise from your furnace, Appalachian Heating is available to support you. Contact us at 304-707-0600 to request your furnace repair appointment now.