When your furnace is working correctly, it should give heat without generating too much sound. While it’s normal to notice your furnace making noise as it turns on, other noises are indicating your furnace needs immediate professional support.

Here are some of the most common furnace noises and what they could be indicating. If your furnace is making a weird noise, our friendly heating pros are here to assist with the best furnace repair in Ames, Iowa.

1. Furnace Makes Banging or Knocking Sounds

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

Banging Sounds Coming from Your Furnace

Your heating system gets dirty over the years, so that’s why it’s critical to set yearly furnace maintenance with Haselhoff Air Solutions. One of the jobs our technicians do during this appointment is clean your furnace’s burners. When this part gets grimy, you might hear your furnace making a loud rumbling noise after ignition takes more time. The following gas buildup may fracture your furnace’s heat exchanger, where natural gas transforms into heat. Any fractures in it can leak carbon monoxide, which is normally emitted away from your home. This dangerous 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 calling us at 515-450-8739. Significant natural gas in your furnace or a ruptured heat exchanger are hazardous troubles that require prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver warm air across your home. If the ductwork wasn’t installed correctly or is getting dated, it can make a lot of noise when your furnace is heating. This may be the problem if your furnace makes a banging noise when it shuts off. Call 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 typically indicates an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to operate on the right voltage. If wires or the box is loose, you may detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves hot or cooled air throughout your house, and a capacitor, which starts the motor. If either of these pieces are going out, they will buzz when the furnace starts.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be related to something small, like an unsecure screw, or something major, like a broken piece. In either case, we urge you to shut your furnace off and getting in touch with our heating pros at 515-450-8739 for support.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to get your attention it needs some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn down or a bearing might need to be lubricated. We know that maintenance sometimes slips your mind, but our pros can get your furnace running quietly again fast.

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You may also be aware of whistling while the furnace is running if a floor vent isn’t secure. If you’ve checked your vents but are still hearing noise, Haselhoff Air Solutions can help. It’s critical to get loose ductwork taken care of fast, since it can result in comfort problems in your home and drive up your heating expenses.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal sound usually means there’s an issue with your furnace’s blower. Turn off your furnace off instantly and call us at 515-450-8739 for assistance.

When you’re hearing a strange noise from your furnace, Haselhoff Air Solutions is here to provide assistance. Contact us at 515-450-8739 to book your furnace repair appointment today.