Why Is My Air Conditioner Making A Noise?
Hearing strange noises when your air conditioner is working? There’s a strong probability there’s something wrong with your unit. If you don’t pay attention to it, it could lead to significant—and expensive—problems eventually. We’re going to help you figure out what’s occurring with your air conditioner and what you can do to change it.
8 Common Air Conditioning Noises
- Gurgling – Gurgling usually indicates a problem with your refrigerant line. If you can’t determine where the noise is emanating from, that’s alright. A professional can help find out where this noise is occurring.
- Crackling – Crackling could come from debris in the unit or aging ductwork. Debris in the outdoor unit will create a noise outside your house. Mature ductwork can create noise inside your house.
- Hissing – Hissing sounds coming from your AC can come from a leaky refrigerant line, an internal valve leak or the compressor.
- Buzzing – Buzzing is no doubt an electrical issue.
- Clicking – Clicking can indicate you have a loose part or that the fan is misaligned.
- Pulsating – Pulsating can be due to a loose part.
- Loud Noise – A loud noise from your outdoor unit can indicate an issue with your compressor, damper, fan or air handler.
- Humming – Humming can arise from fan motor issues or a busted relay switch. Head to our humming noise guide for more information.
You can find more information about prevalent air conditioning issues on energy.gov
Should I keep operating my AC when it’s making a noise?
There are some cases where you can continue to run your AC, but you do so at your own risk. It’s almost impossible to answer this question without examining your system.
Usually, we recommend shutting down the unit off and calling a professional.
When should I do something about the noise?
We recommend calling a professional as soon as you suspect there’s an issue with your system. While AC repairs can be stressful and an unexpected cost, it’s best to get problems corrected right away. Getting a professional could help lower future expenses and keep your system running longer.
Not sure if your air conditioner is making any of these noises? Please schedule online for a free, in-home consultation.
