When your furnace is running correctly, it should give warm air without generating too much noise. While it’s expected to catch your furnace making noise as it starts up, other noises are signaling your furnace requires immediate professional help.

Here are some of the most common furnace noises and what they could be signaling. If your furnace is making an atypical noise, our friendly heating specialists are here to help with the best furnace repair in Marshfield, Wisconsin.

1. Furnace Makes Banging or Knocking Sounds

You may have a critical problem on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it might signal there could be several problems. These range from gas accumulating in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns filthy as time passes, so that’s why it’s critical to set yearly furnace maintenance with House of Heating Incorporated. One of the jobs our pros complete during this service 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 following gas buildup might break your furnace’s heat exchanger, where natural gas changes into heat. Any breaks in it can emit carbon monoxide, which is regularly vented away from your home. This toxic gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, House of Heating Incorporated urges you to turn it off and calling us at 715-322-0009. Too much natural gas in your furnace or a cracked heat exchanger are serious problems that require prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move hot air throughout your home. If the ductwork wasn’t designed right or is getting old, it can be loud when your furnace runs. This might be the problem if your furnace makes a banging noise when it shuts off. Get in touch with House of Heating Incorporated at 715-322-0009 and we’ll figure out the problem.

2. Furnace Makes a Buzzing Sound

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

Your furnace uses an internal transformer to run on the right voltage. If wires or the box is loose, you might notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or cold air around your house, and a capacitor, which triggers the motor. If either of these parts 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 can be related to something minor, like a loose screw, or something critical, like a broken part. In either case, we advise shutting your furnace off and contacting our heating professionals at 715-322-0009 for support.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to alert you it could use some TLC. If you’ve forgotten furnace maintenance recently, belts could be worn out or a bearing might need to be lubricated. We are aware that maintenance often slips your mind, but our technicians can get your furnace running quietly again quickly.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s frequently the result of an air leak in your ductwork. You might 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 sound, House of Heating Incorporated can assist you. It’s important to get loose ductwork fixed fast, because it can make comfort issues in your house and drive up your energy expenses.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal sound often means there’s trouble with your furnace’s blower. Switch off your furnace off now and reach our professionals at 715-322-0009 for assistance.

When you’re getting a weird noise from your furnace, House of Heating Incorporated is ready to help. Contact us at 715-322-0009 to book your furnace repair appointment now.