When your furnace is working properly, it should deliver warmth without making too much sound. While it’s expected to hear your furnace making noise as it starts up, other sounds are signaling your furnace should get immediate professional assistance.

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 professionals are here to help with the best furnace repair in Ames, Iowa.

1. Furnace Makes a Banging Sound

You may have an urgent issue on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can signal there could be several problems. These include gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy over the years, so that’s why it’s important to book yearly furnace maintenance with Haselhoff Air Solutions. One of the jobs our pros do during this appointment is clean your furnace’s burners. When this component gets dirty, you might hear your furnace making a loud rumbling noise after ignition is delayed. The following gas buildup may fracture your furnace’s heat exchanger, where natural gas transforms into warmth. Any cracks in it can discharge carbon monoxide, which is ordinarily vented away from your home. This hazardous gas can be fatal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Haselhoff Air Solutions urges you to turn it off and reaching us at 515-450-8739. Significant natural gas in your furnace or a cracked heat exchanger are serious issues that should get prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver warm air around your house. If the ductwork wasn’t designed properly or is aging, it can be noisy when your furnace is on. This could be the problem if your furnace makes a banging noise when it shuts off. Contact Haselhoff Air Solutions at 515-450-8739 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

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

Your furnace uses an internal transformer to work on the correct 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 uses a blower motor, which distributes heated or cold air throughout your house, and a capacitor, which starts the motor. If either of these pieces are failing, they will buzz when the furnace switches on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it could be due to something minor, like an unfastened screw, or something serious, like a broken piece. In either case, we advise shutting your furnace off and getting in touch with our heating pros at 515-450-8739 for help.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying 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 might need to be lubricated. We realize that maintenance often slips your mind, but our technicians can get your furnace heating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You could also hear whistling while the furnace is operating if a floor vent isn’t secure. If you’ve looked at your vents but are still hearing noise, Haselhoff Air Solutions can help. It’s critical to get loose ductwork fixed quickly, because it can create comfort troubles in your home and increase your gas expenses.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal sound typically means there’s a problem with your furnace’s blower. Shut down your furnace off promptly and call our professionals at 515-450-8739 for support.

When you’re noticing a weird noise from your furnace, Haselhoff Air Solutions is ready to help. Contact us at 515-450-8739 to book your furnace repair appointment today.