When your furnace is running correctly, it should give warm air without creating too much sound. While it’s common to catch your furnace making noise as it begins running, other disruptions are indicating your furnace should get immediate professional help.

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 pros are here to help with the best furnace repair in Edmond, Oklahoma.

1. Furnace Makes Banging or Knocking Sounds

You could have a critical problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it might mean there could be a few problems. These range from gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over the years, so that’s why it’s important to schedule yearly furnace maintenance with Prudhom Mechanical. One of the tasks our techs perform during this service is clean your furnace’s burners. When this piece gets dirty, you may hear your furnace making a loud rumbling noise after ignition takes more time. The following gas buildup may break your furnace’s heat exchanger, where natural gas turns into warm air. Any fractures in it can emit carbon monoxide, which is normally released outdoors. This hazardous gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Prudhom Mechanical advises turning it off and calling us at 405-888-8606. Excessive natural gas in your furnace or a cracked heat exchanger are dangerous problems that require prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide heated air throughout your house. If the ductwork wasn’t designed right or is aging, it can be loud when your furnace is heating. This could be the case if your furnace makes a banging noise when it shuts off. Call Prudhom Mechanical at 405-888-8606 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

If you observe 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 relies on an internal transformer to work on the proper voltage. If wires or the box needs to be tightened, you could hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves warm or chilly air across your space, 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 may be due to something small, like a loose screw, or something critical, like a broken part. In either case, we advise shutting your furnace off and getting in touch with our heating specialists at 405-888-8606 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to get your attention it could use some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing could need to be greased. We know that maintenance often slips your mind, but our professionals can get your furnace heating quietly again rapidly.

5. Furnace Whistles

When you’re hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You may also notice whistling while the furnace is working if a floor vent is loose. If you’ve examined your vents but are still hearing sound, Prudhom Mechanical can provide support. It’s critical to get loose ductwork fixed fast, because it can create comfort troubles in your home and drive up your heating expenses.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you detect your furnace making a grinding noise. This metal-on-metal noise typically means there’s a problem with your furnace’s blower. Shut down your furnace off instantly and reach our professionals at 405-888-8606 for assistance.

When you’re noticing a weird noise from your furnace, Prudhom Mechanical is available to support you. Contact us at 405-888-8606 to schedule your furnace repair appointment right away.