When your furnace is working properly, it should deliver heat without making too much noise. While it’s normal to notice your furnace making noise as it starts up, other noises are signaling your furnace should get immediate professional support.

Here are some of the most frequent furnace noises and what they can mean. If your furnace is making an atypical noise, our friendly heating specialists are here to fix the problem with the best furnace repair in Litchfield Park, Arizona.

1. Furnace Making a Banging Noise

You might have a critical issue on your hands if you’re noticing your furnace making a banging noise. If your furnace is making a knocking noise, it can indicate there could be several problems. These involve gas building up in your furnace or a ductwork problem.

Banging Sounds Coming from Your Furnace

Your heating system becomes filthy over the years, so that’s why it’s essential to schedule seasonal furnace maintenance with Cooler Tymes LLC. One of the jobs our techs do during this work is clean your furnace’s burners. When this part gets grimy, you may hear your furnace making a loud rumbling noise when ignition takes longer than normal. The resulting gas buildup might fracture your furnace’s heat exchanger, where natural gas transforms into warm air. Any fractures in it can discharge carbon monoxide, which is ordinarily released outside. This hazardous gas can be fatal in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Cooler Tymes LLC recommends turning it off and contacting us at 623-208-6444. Significant natural gas in your furnace or a fractured heat exchanger are serious issues that require immediate attention.

Banging Sounds Coming from Your Ductwork

Your furnace uses ductwork to move warm air across 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 might be the issue if your furnace makes a banging noise when it shuts off. Get in touch with Cooler Tymes LLC at 623-208-6444 and we’ll pinpoint the problem.

2. Furnace Buzzes Constantly

If you hear your furnace making a buzzing noise, don’t delay calling us. A buzzing sound frequently indicates an electrical problem, like with its transformer, blower motor or capacitor.

Your furnace uses an internal transformer to operate on the right voltage. If wires or the box needs to be tightened, you might hear a low humming noise in the furnace when off. Your furnace also has a blower motor, which distributes warm or cooled air throughout your rooms, and a capacitor, which turns on the motor. If either of these parts are going out, they will buzz when the furnace turns on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it may be related to something minor, like a loose screw, or something serious, like a broken component. In either case, we recommend shutting off your furnace and calling our heating pros at 623-208-6444 for assistance.

4. Furnace Making a Squealing Noise

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

5. Furnace Making a Whistling Noise

When you’re hearing your furnace making a whistling noise, it’s typically because of an air leak in your ductwork. You might also hear whistling while the furnace is operating if a floor vent isn’t secure. If you’ve examined your vents but are still noticing noise, Cooler Tymes LLC can assist you. It’s important to get loose ductwork taken care of quickly, because it can create comfort troubles in your home and inflate your energy costs.

6. Furnace Making a Grinding Noise

It’s not an encouraging sign if you notice your furnace making a grinding noise. This metal-on-metal racket frequently means there’s an issue with your furnace’s blower. Turn off your furnace off immediately and reach us at 623-208-6444 for assistance.

When you’re hearing an uncommon noise from your furnace, Cooler Tymes LLC is available to provide assistance. Contact us at 623-208-6444 to request your furnace repair appointment today.