When your furnace is working properly, it should deliver warm air without making too much sound. While it’s expected to catch your furnace making noise as it begins running, other sounds are indicating your furnace needs immediate professional help.

Here are some of the most common furnace noises and what they might be indicating. If your furnace is making an odd noise, our friendly heating specialists are here to help with the best furnace repair in Rapid City, South Dakota.

1. Furnace Making a Banging Noise

You might have an urgent situation on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it can mean 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 becomes dirty over time, so that’s why it’s critical to schedule seasonal furnace maintenance with Precision Mechanical. One of the tasks our technicians complete during this service is clean your furnace’s burners. When this piece gets grubby, you may hear your furnace making a loud rumbling noise after ignition takes longer than normal. The following gas buildup can break your furnace’s heat exchanger, where natural gas turns into warmth. Any cracks in it can discharge carbon monoxide, which is ordinarily vented outdoors. This hazardous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Precision Mechanical recommends turning it off and reaching us at 605-206-3766. Significant natural gas in your furnace or a ruptured heat exchanger are serious problems that require fast service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver heated air throughout your residence. If the ductwork wasn’t put in properly or is getting old, it can be loud when your furnace is on. This may be the issue if your furnace makes a banging noise when it shuts off. Contact Precision Mechanical at 605-206-3766 and we’ll determine the problem.

2. Furnace Buzzes Constantly

If you observe 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 relies on an internal transformer to operate on the proper voltage. If wires or the box isn’t tight enough, you may hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which moves heated or cold air across your home, and a capacitor, which triggers the motor. If either of these components are failing, they will buzz when the furnace starts.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it may be related to something minor, like an unsecure screw, or something major, like a broken component. In either case, we advise shutting your furnace off and calling our heating specialists at 605-206-3766 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to tell you it needs some TLC. If you’ve neglected furnace maintenance recently, belts could be worn down or a bearing may need to be lubricated. We realize that maintenance sometimes slips your mind, but our techs can get your furnace running quietly again rapidly.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You may also notice whistling while the furnace is working if a floor vent isn’t tight. If you’ve examined your vents but are still sensing whistling, Precision Mechanical can assist you. It’s essential to get loose ductwork taken care of fast, since it can make comfort issues in your house and drive up your heating costs.

6. Furnace Making a Grinding Noise

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal noise frequently means there’s a problem with your furnace’s blower. Switch off your furnace off now and contact us at 605-206-3766 for support.

When you’re getting an atypical noise from your furnace, Precision Mechanical is available to help. Contact us at 605-206-3766 to schedule your furnace repair appointment right away.