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

Here are some of the most reported furnace noises and what they might mean. If your furnace is making an odd noise, our friendly heating specialists are here to help with the best furnace repair in Marshalltown, 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 can mean there could be a couple of problems. These range from gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system becomes grimy over the years, so that’s why it’s critical to schedule seasonal furnace maintenance with B & G HVAC. One of the tasks our pros perform during this service is clean your furnace’s burners. When this piece gets grimy, you could hear your furnace making a loud rumbling noise if ignition takes longer than normal. The subsequent gas buildup may fracture your furnace’s heat exchanger, where natural gas changes into warm air. Any cracks in it can emit carbon monoxide, which is ordinarily emitted outdoors. This dangerous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, B & G HVAC advises turning it off and calling us at 641-316-3360. Significant natural gas in your furnace or a cracked heat exchanger are critical troubles that should get fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide hot air across your residence. If the ductwork wasn’t designed correctly or is aging, it can be noisy when your furnace runs. This can be the issue if your furnace makes a banging noise when it shuts off. Get in touch with B & G HVAC at 641-316-3360 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

If you notice your furnace making a buzzing noise, don’t wait to call us. A buzzing sound frequently indicates an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace depends on an internal transformer to run on the right voltage. If wires or the box needs to be tightened, you may hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which distributes heated or chilly air throughout your home, and a capacitor, which starts the motor. If either of these pieces are fading, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it can be related to something minor, like an unfastened screw, or something critical, like a broken piece. In either case, we urge you to shut your furnace off and getting in touch with our heating specialists at 641-316-3360 for assistance.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s trying to tell you it needs some TLC. If you’ve skipped furnace maintenance recently, belts could be worn out or a bearing might need to be lubed. We know that maintenance frequently slips your mind, but our techs can get your furnace heating quietly again rapidly.

5. Furnace Making a Whistling Noise

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 running if a floor vent is loose. If you’ve examined your vents but are still sensing sound, B & G HVAC can assist you. It’s important to get loose ductwork repaired quickly, because it can create comfort problems in your house and increase your heating 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 racket typically means there’s an issue with your furnace’s blower. Shut down your furnace off instantly and reach us at 641-316-3360 for support.

When you’re noticing an atypical noise from your furnace, B & G HVAC is here to support you. Contact us at 641-316-3360 to schedule your furnace repair appointment today.