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

Here are some of the most reported furnace noises and what they can be signaling. If your furnace is making an odd noise, our friendly heating professionals are here to assist with the best furnace repair in Cache Valley, Utah.

1. Furnace Makes a Banging Sound

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

Banging Sounds Coming from Your Furnace

Your heating system turns filthy over the years, so that’s why it’s essential to book yearly furnace maintenance with Western Mechanical, Inc.. One of the things our professionals do during this work is clean your furnace’s burners. When this part gets grimy, you might hear your furnace making a loud rumbling noise after ignition takes longer than normal. The following gas buildup may break your furnace’s heat exchanger, where natural gas changes into warmth. Any breaks in it can emit carbon monoxide, which is regularly released outdoors. This toxic gas can be deadly in large concentrations.

If you’re hearing banging or knocking sounds coming from your furnace, Western Mechanical, Inc. recommends turning it off and calling us at 435-753-5515. Significant natural gas in your furnace or a cracked heat exchanger are critical problems that require fast repairs.

Banging Sounds Coming from Your Ductwork

Your furnace works with ductwork to provide hot air around your house. If the ductwork wasn’t designed properly or is getting dated, 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. Call Western Mechanical, Inc. at 435-753-5515 and we’ll figure out the problem.

2. Furnace Making a Buzzing Noise

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

Your furnace relies on an internal transformer to run on the proper voltage. If wires or the box needs to be tightened, you could hear a low humming noise in the furnace when off. Your furnace also uses a blower motor, which moves heated or cooled air around your home, and a capacitor, which turns on the motor. If either of these components are failing, they will buzz when the furnace switches on.

3. Furnace Makes Rattling Sounds Like Something Is Loose

If your furnace is making a rattling noise, it may be related to something small, like an unsecure screw, or something major, like a broken piece. In either case, we urge you to shut your furnace off and calling our heating specialists at 435-753-5515 for support.

4. Furnace Squeals

If your furnace makes a high-pitched noise, like squealing, when it’s heating, it’s trying to alert you it requires some TLC. If you’ve skipped furnace maintenance recently, belts could be worn down or a bearing could need to be lubed. We know that maintenance frequently slips your mind, but our technicians can get your furnace operating quietly again quickly.

5. Furnace Making a Whistling Noise

When you’re noticing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You may also hear whistling while the furnace is running if a floor vent isn’t tight. If you’ve looked at your vents but are still hearing noise, Western Mechanical, Inc. can assist you. It’s essential to get loose ductwork repaired quickly, since it can make comfort problems in your home and increase your gas bills.

6. Furnace Makes Noise that Sounds Like Scraping Metal

It’s not a positive sign if you notice your furnace making a grinding noise. This metal-on-metal sound often means there’s trouble with your furnace’s blower. Turn off your furnace off promptly and contact our professionals at 435-753-5515 for support.

When you’re getting a strange noise from your furnace, Western Mechanical, Inc. is available to provide assistance. Contact us at 435-753-5515 to request your furnace repair appointment now.