When your furnace is working properly, it should deliver warm air without creating too much noise. While it’s normal to hear your furnace making noise as it turns on, other disruptions are showing your furnace needs immediate professional assistance.

Here are some of the most frequent furnace noises and what they can mean. If your furnace is making a weird noise, our friendly heating pros are here to help with the best furnace repair in Muldrow, Oklahoma.

1. Furnace Makes a Banging Sound

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 may signal there could be a couple of problems. These involve gas building up in your furnace or a ductwork situation.

Banging Sounds Coming from Your Furnace

Your heating system turns dirty over the years, so that’s why it’s critical to book routine furnace maintenance with Air Service Co.. One of the things our techs do during this work is clean your furnace’s burners. When this piece gets dirty, you may hear your furnace making a loud rumbling noise after ignition takes more time. The ensuing gas buildup can crack your furnace’s heat exchanger, where natural gas transforms 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, Air Service Co. recommends turning it off and calling us at 918-212-8943. Too much natural gas in your furnace or a cracked heat exchanger are critical problems that require immediate service.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to deliver heated air around your home. If the ductwork wasn’t designed right or is aging, it can be loud when your furnace is heating. This can be the case if your furnace makes a banging noise when it shuts off. Contact Air Service Co. at 918-212-8943 and we’ll determine the problem.

2. Furnace Buzzes Constantly

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

Your furnace relies on an internal transformer to operate on the correct voltage. If wires or the box is loose, you may hear a low humming noise in the furnace when off. Your furnace also works with a blower motor, which sends hot or chilly air around your house, and a capacitor, which starts the motor. If either of these pieces are going out, they will buzz when the furnace turns on.

3. Furnace Rattles

If your furnace is making a rattling noise, it may be related to something small, like an unfastened screw, or something critical, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating pros at 918-212-8943 for help.

4. Furnace Is Making a High-Pitched Squealing Sound

If your furnace makes a high-pitched noise, like squealing, when it’s on, it’s making an effort to tell you it requires some TLC. If you’ve skipped furnace maintenance the past few years, belts could be worn down or a bearing could need to be lubricated. We realize that maintenance sometimes slips your mind, but our pros can get your furnace heating quietly again rapidly.

5. Furnace Whistles

When you’re noticing your furnace making a whistling noise, it’s typically the result of an air leak in your ductwork. You may also hear whistling while the furnace is operating if a floor vent isn’t secure. If you’ve looked at your vents but are still sensing whistling, Air Service Co. can assist you. It’s important to get loose ductwork taken care of quickly, as it can create comfort problems in your residence and drive up your gas 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 noise usually means there’s a problem with your furnace’s blower. Shut down your furnace off right away and call our pros at 918-212-8943 for support.

When you’re noticing a weird noise from your furnace, Air Service Co. is ready to help. Contact us at 918-212-8943 to schedule your furnace repair appointment now.