When your furnace is working properly, it should give warmth without generating too much disruption. While it’s normal to hear your furnace making noise as it turns on, other disruptions are indicating your furnace should get immediate professional assistance.

Here are some of the most common furnace noises and what they can be signaling. If your furnace is making an atypical noise, our friendly heating pros are here to help with the best furnace repair in Sacramento, California.

1. Furnace Making a Banging Noise

You could have a serious issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can mean there could be several problems. These include gas increasing in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over time, so that’s why it’s critical to set yearly furnace maintenance with Bishop’s HVAC. One of the things our technicians perform during this service is clean your furnace’s burners. When this piece gets dirty, you could hear your furnace making a loud rumbling noise after ignition takes more time. The ensuing gas buildup can break your furnace’s heat exchanger, where natural gas turns into warm air. Any breaks in it can emit carbon monoxide, which is normally released away from your home. This hazardous gas can be lethal in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Bishop’s HVAC urges you to turn it off and reaching us at 916-591-6889. Too much natural gas in your furnace or a broken heat exchanger are dangerous problems that require immediate repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide warm air throughout your home. If the ductwork wasn’t designed right or is getting old, it can be noisy when your furnace is on. This could be the case if your furnace makes a banging noise when it shuts off. Call Bishop’s HVAC at 916-591-6889 and we’ll figure out 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 frequently indicates an electrical situation, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to run on the proper voltage. If wires or the box is loose, you might detect 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 house, and a capacitor, which turns on the motor. If either of these pieces are fading, they will buzz when the furnace starts.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be due to something small, like a loose screw, or something critical, like a broken piece. In either case, we advise shutting your furnace off and calling our heating professionals at 916-591-6889 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s running, it’s attempting to get your attention it requires some TLC. If you’ve skipped furnace maintenance the last couple of years, belts could be worn out or a bearing might need to be lubricated. We realize that maintenance frequently slips your mind, but our technicians can get your furnace running quietly again rapidly.

5. Furnace Whistles

When you’re detecting your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You could also notice whistling while the furnace is working if a floor vent isn’t secure. If you’ve examined your vents but are still noticing sound, Bishop’s HVAC can help. It’s essential to get loose ductwork taken care of without delay, because it can make comfort problems in your home and drive up your utility costs.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not an encouraging sign if you detect your furnace making a grinding noise. This metal-on-metal sound usually means there’s an issue with your furnace’s blower. Shut down your furnace off promptly and call our pros at 916-591-6889 for support.

When you’re getting a strange noise from your furnace, Bishop’s HVAC is ready to help. Contact us at 916-591-6889 to schedule your furnace repair appointment now.