When your furnace is running correctly, it should deliver warm air without creating too much disruption. While it’s normal to catch your furnace making noise as it starts up, other sounds are indicating your furnace should get immediate professional support.

Here are some of the most reported furnace noises and what they might mean. If your furnace is making a weird noise, our friendly heating pros are here to assist with the best furnace repair in Auburn, California.

1. Furnace Making a Banging Noise

You might have an urgent issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it might mean there could be several problems. These range from gas accumulating in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system turns grimy over the years, so that’s why it’s important to schedule routine furnace maintenance with Forster Heating. One of the jobs our pros do during this service 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 may fracture your furnace’s heat exchanger, where natural gas changes into warm air. Any fractures in it can emit carbon monoxide, which is ordinarily vented outdoors. This dangerous gas can be deadly in large concentrations.

If you’re aware of banging or knocking sounds coming from your furnace, Forster Heating urges you to turn it off and contacting us at 530-885-8081. Significant natural gas in your furnace or a cracked heat exchanger are hazardous problems that should get fast service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to provide heated air across your home. If the ductwork wasn’t designed properly or is getting old, it can be loud when your furnace runs. This can be the problem if your furnace makes a banging noise when it shuts off. Call Forster Heating at 530-885-8081 and we’ll pinpoint the problem.

2. Furnace Makes a Buzzing Sound

If you hear your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound typically indicates 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 is loose, you could detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or cold air across your house, and a capacitor, which turns on the motor. If either of these parts are going out, they will buzz when the furnace starts.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it could be related to something little, like an unsecure screw, or something critical, like a broken component. In either case, we urge you to shut your furnace off and getting in touch with our heating pros at 530-885-8081 for help.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s going, it’s trying to get your attention it could use some TLC. If you’ve skipped furnace maintenance recently, belts could be worn down or a bearing might need to be lubricated. We realize that maintenance often slips your mind, but our professionals can get your furnace heating quietly again quickly.

5. Furnace Makes a Whistling Sound Like Air Escaping

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 notice whistling while the furnace is running if a floor vent isn’t tight. If you’ve examined your vents but are still hearing noise, Forster Heating can help. It’s critical to get loose ductwork fixed without delay, as it can create comfort troubles in your house and increase your utility costs.

6. Furnace Making a Grinding Noise

It’s not a positive sign if you hear your furnace making a grinding noise. This metal-on-metal racket often means there’s an issue with your furnace’s blower. Shut down your furnace off immediately and call our professionals at 530-885-8081 for support.

When you’re noticing an uncommon noise from your furnace, Forster Heating is available to support you. Contact us at 530-885-8081 to request your furnace repair appointment now.