When your furnace is working properly, it should deliver heat without creating too much noise. While it’s expected to notice your furnace making noise as it begins running, other noises are signaling your furnace requires immediate professional help.

Here are some of the most reported furnace noises and what they could be indicating. If your furnace is making an odd noise, our friendly heating professionals are here to assist with the best furnace repair in Zelienople, Pennsylvania.

1. Furnace Makes a Banging Sound

You could have a serious problem on your hands if you’re detecting 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 include gas increasing in your furnace or a ductwork issue.

Banging Sounds Coming from Your Furnace

Your heating system gets grimy as time passes, so that’s why it’s essential to book yearly furnace maintenance with Knoechel Heating. One of the jobs our techs perform during this service is clean your furnace’s burners. When this part gets grimy, you could hear your furnace making a loud rumbling noise after ignition is delayed. The following gas buildup can break your furnace’s heat exchanger, where natural gas turns into heat. Any fractures in it can emit carbon monoxide, which is normally emitted away from your home. This toxic gas can be fatal in large concentrations.

If you’re noticing banging or knocking sounds coming from your furnace, Knoechel Heating advises turning it off and calling us at 724-425-5852. Too much natural gas in your furnace or a cracked heat exchanger are hazardous troubles that should get prompt attention.

Banging Sounds Coming from Your Ductwork

Your furnace relies on ductwork to deliver warm air around your home. If the ductwork wasn’t installed right or is aging, it can make a lot of noise when your furnace runs. This could be the case if your furnace makes a banging noise when it shuts off. Call Knoechel Heating at 724-425-5852 and we’ll figure out the problem.

2. Furnace Buzzes Constantly

If you notice your furnace making a buzzing noise, don’t hesitate to call us. A buzzing sound often means there’s an electrical issue, like with its transformer, blower motor or capacitor.

Your furnace relies on an internal transformer to operate on the proper voltage. If wires or the box isn’t tight enough, you may detect a low humming noise in the furnace when off. Your furnace also uses a blower motor, which sends heated or chilly air throughout your house, and a capacitor, which triggers 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 major, like a broken piece. In either case, we advise shutting your furnace off and getting in touch with our heating specialists at 724-425-5852 for assistance.

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 attempting to alert you it requires some TLC. If you’ve neglected furnace maintenance the last couple of years, belts could be worn out or a bearing may need to be lubricated. We know that maintenance frequently slips your mind, but our professionals can get your furnace operating quietly again rapidly.

5. Furnace Makes a Whistling Sound Like Air Escaping

When you’re hearing your furnace making a whistling noise, it’s likely because of an air leak in your ductwork. You could also notice whistling while the furnace is on if a floor vent is loose. If you’ve looked at your vents but are still sensing sound, Knoechel Heating can assist you. It’s critical to get loose ductwork repaired without delay, because it can make comfort troubles in your home and drive up your energy bills.

6. Furnace Makes a Loud, Unpleasant Grinding Noise

It’s not a good sign if you hear your furnace making a grinding noise. This metal-on-metal noise often means there’s an issue with your furnace’s blower. Turn off your furnace off now and reach our pros at 724-425-5852 for help.

When you’re hearing an uncommon noise from your furnace, Knoechel Heating is ready to support you. Contact us at 724-425-5852 to request your furnace repair appointment today.