When your furnace is working like it should, it should give heat without making too much noise. While it’s expected to notice your furnace making noise as it turns on, other noises are indicating your furnace should get immediate professional assistance.

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

1. Furnace Makes Banging or Knocking Sounds

You might 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 a couple of problems. These include gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets filthy over time, so that’s why it’s critical to set annual furnace maintenance with Forster Heating. One of the jobs our technicians complete during this appointment is clean your furnace’s burners. When this part gets dirty, you might hear your furnace making a loud rumbling noise when ignition is delayed. The subsequent gas buildup might crack your furnace’s heat exchanger, where natural gas transforms into warm air. Any breaks in it can emit carbon monoxide, which is regularly vented outside. This hazardous gas can be lethal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Forster Heating recommends turning it off and reaching us at 530-885-8081. Significant natural gas in your furnace or a ruptured heat exchanger are serious troubles that require prompt service.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to deliver hot air throughout your house. If the ductwork wasn’t put in right or is aging, it can make a lot of noise when your furnace is on. This can be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Forster Heating at 530-885-8081 and we’ll determine the problem.

2. Furnace Buzzes Constantly

If you notice your furnace making a buzzing noise, don’t wait 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 work 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 has a blower motor, which moves hot or chilly air around your house, and a capacitor, which turns on the motor. If either of these parts are failing, they will buzz when the furnace starts.

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 serious, like a broken piece. In either case, we recommend shutting off your furnace and getting in touch with our heating professionals at 530-885-8081 for assistance.

4. Furnace Making a Squealing Noise

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s attempting to tell you it needs some TLC. If you’ve neglected furnace maintenance recently, belts could be worn out or a bearing may need to be greased. We realize that maintenance sometimes slips your mind, but our professionals can get your furnace operating quietly again fast.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s typically due to an air leak in your ductwork. You may also hear whistling while the furnace is working if a floor vent isn’t tight. If you’ve looked at your vents but are still noticing whistling, Forster Heating can help. It’s essential to get loose ductwork taken care of quickly, as it can create comfort issues in your house and drive up your utility expenses.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a good sign if you notice your furnace making a grinding noise. This metal-on-metal racket frequently means there’s a problem with your furnace’s blower. Shut down your furnace off now and reach our professionals at 530-885-8081 for help.

When you’re hearing an atypical noise from your furnace, Forster Heating is here to provide assistance. Contact us at 530-885-8081 to schedule your furnace repair appointment today.