Banging, Screeching and Rattling: What Six Ordinary Furnace Noises Mean

When your furnace is running properly, it should deliver warm air without creating too much disruption. While it’s common to hear your furnace making noise as it starts up, other disruptions are signaling your furnace requires immediate professional support.

Here are some of the most reported furnace noises and what they can mean. If your furnace is making an odd noise, our friendly heating professionals are here to fix the problem with the best furnace repair in Kankakee, Illinois.

1. Furnace Making a Banging Noise

You might have a critical problem on your hands if you’re hearing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be a few problems. These involve gas increasing in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy as time passes, so that’s why it’s critical to schedule seasonal furnace maintenance with Home Furniture, Plumbing & Heating. One of the things our professionals do during this appointment is clean your furnace’s burners. When this component gets dirty, you could hear your furnace making a loud rumbling noise after ignition takes more time. The resulting gas buildup might fracture your furnace’s heat exchanger, where natural gas transforms into heat. Any cracks in it can emit carbon monoxide, which is regularly emitted outdoors. This toxic gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Home Furniture, Plumbing & Heating urges you to turn it off and reaching us at 815-933-8213. Excessive natural gas in your furnace or a ruptured heat exchanger are dangerous issues that should get prompt repairs.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver hot air across your residence. If the ductwork wasn’t put in properly or is getting dated, it can make a lot of noise when your furnace is heating. This might be the issue if your furnace makes a banging noise when it shuts off. Call Home Furniture, Plumbing & Heating at 815-933-8213 and we’ll determine the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace depends on an internal transformer to operate on the right voltage. If wires or the box needs to be tightened, you could notice a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends hot or cold air around your house, and a capacitor, which triggers the motor. If either of these pieces are going out, they will buzz when the furnace turns on.

3. Furnace Making a Rattling Noise

If your furnace is making a rattling noise, it may be the result of something little, like an unfastened screw, or something critical, like a broken piece. In either case, we advise shutting your furnace off and calling our heating specialists at 815-933-8213 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s making an effort to alert you it requires some TLC. If you’ve neglected furnace maintenance the past few years, belts could be worn down or a bearing may need to be lubricated. We know that maintenance frequently slips your mind, but our professionals can get your furnace running quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re detecting your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You could also hear whistling while the furnace is running if a floor vent isn’t secure. If you’ve checked your vents but are still hearing noise, Home Furniture, Plumbing & Heating can help. It’s essential to get loose ductwork repaired without delay, since it can result in comfort problems in your house and inflate your energy expenses.

6. Furnace Making a Grinding Noise

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal sound typically means there’s trouble with your furnace’s blower. Switch off your furnace off now and reach our professionals at 815-933-8213 for assistance.

When you’re noticing a strange noise from your furnace, Home Furniture, Plumbing & Heating is ready to help. Contact us at 815-933-8213 to request your furnace repair appointment right away.