When your furnace is working correctly, it should deliver warmth without making too much noise. While it’s expected to notice your furnace making noise as it turns on, other sounds are indicating your furnace requires immediate professional support.

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

1. Furnace Making a Banging Noise

You might 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 may signal there could be a few problems. These involve 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 seasonal furnace maintenance with Haselhoff Air Solutions. One of the tasks our professionals complete during this work is clean your furnace’s burners. When this part gets dirty, you might hear your furnace making a loud rumbling noise if ignition is delayed. The ensuing gas buildup can fracture your furnace’s heat exchanger, where natural gas transforms into warmth. Any fractures in it can leak carbon monoxide, which is regularly released outdoors. This dangerous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Haselhoff Air Solutions recommends turning it off and calling us at 515-450-8739. Excessive natural gas in your furnace or a fractured heat exchanger are hazardous issues that should get fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide warm air across your house. If the ductwork wasn’t put in right or is getting old, it can make a lot of noise when your furnace runs. This could be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Haselhoff Air Solutions at 515-450-8739 and we’ll determine the problem.

2. Furnace Makes a Buzzing Sound

If you observe your furnace making a buzzing noise, don’t wait to call us. A buzzing sound usually indicates an electrical issue, 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 needs to be tightened, you may detect a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends heated or cold air across your space, and a capacitor, which triggers the motor. If either of these components are failing, they will buzz when the furnace switches on.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be related to something minor, like a loose screw, or something serious, like a broken component. In either case, we recommend shutting off your furnace and contacting our heating specialists at 515-450-8739 for support.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to tell you it could use some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing may need to be lubed. We know that maintenance often slips your mind, but our pros can get your furnace operating quietly again fast.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re detecting your furnace making a whistling noise, it’s frequently due to an air leak in your ductwork. You could also be aware of whistling while the furnace is operating if a floor vent isn’t secure. If you’ve looked at your vents but are still noticing noise, Haselhoff Air Solutions can assist you. It’s important to get loose ductwork repaired quickly, as it can result in comfort problems in your house and inflate your utility bills.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal racket often means there’s a problem with your furnace’s blower. Switch off your furnace off immediately and reach us at 515-450-8739 for help.

When you’re getting an atypical noise from your furnace, Haselhoff Air Solutions is ready to support you. Contact us at 515-450-8739 to schedule your furnace repair appointment right away.