When your furnace is working properly, it should give heat without generating too much noise. While it’s expected to notice your furnace making noise as it begins running, other disruptions are showing your furnace needs immediate professional assistance.

Here are some of the most common furnace noises and what they might be indicating. If your furnace is making an odd noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Alliance, Nebraska.

1. Furnace Makes Banging or Knocking Sounds

You may have an urgent problem on your hands if you’re detecting your furnace making a banging noise. If your furnace is making a knocking noise, it may mean there could be several problems. These range from gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system gets dirty over the years, so that’s why it’s important to schedule annual furnace maintenance with Jack's Heating, Cooling, Stoves & Fireplaces. One of the things our pros do during this appointment is clean your furnace’s burners. When this component gets grimy, you may hear your furnace making a loud rumbling noise if ignition takes longer than normal. The following gas buildup may crack your furnace’s heat exchanger, where natural gas turns into warmth. Any breaks in it can emit carbon monoxide, which is regularly vented outdoors. This hazardous gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Jack's Heating, Cooling, Stoves & Fireplaces urges you to turn it off and reaching us at 308-762-1613. Significant natural gas in your furnace or a ruptured heat exchanger are hazardous troubles that should get prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move hot air across your house. If the ductwork wasn’t installed properly or is getting old, it can make a lot of noise when your furnace is on. This could be the case if your furnace makes a banging noise when it shuts off. Get in touch with Jack's Heating, Cooling, Stoves & Fireplaces at 308-762-1613 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 usually is telling you there’s an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to operate on the proper voltage. If wires or the box needs to be tightened, you might detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves hot or chilly air throughout your residence, and a capacitor, which triggers 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 may be due to something minor, like a loose screw, or something critical, like a broken component. In either case, we recommend shutting off your furnace and calling our heating specialists at 308-762-1613 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s attempting to alert you it needs some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn out or a bearing might need to be lubed. We realize that maintenance sometimes slips your mind, but our technicians can get your furnace heating quietly again rapidly.

5. Furnace Whistles

When you’re hearing 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 operating if a floor vent is loose. If you’ve examined your vents but are still noticing sound, Jack's Heating, Cooling, Stoves & Fireplaces can provide support. It’s essential to get loose ductwork fixed fast, since it can result in comfort troubles in your home and drive up your energy bills.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal noise usually means there’s trouble with your furnace’s blower. Shut down your furnace off now and contact our professionals at 308-762-1613 for support.

When you’re hearing a strange noise from your furnace, Jack's Heating, Cooling, Stoves & Fireplaces is available to help. Contact us at 308-762-1613 to request your furnace repair appointment right away.