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What to do if your air conditioner is making a cracking noise?

What to do if your air conditioner is making a cracking noise?

To remove the cause of the noise, shut off the power to the air conditioner, remove the fan-housing panel from unit and inspect the fan housing area. Take out any debris you find there to stop the noise and to prevent the fan motor from burning up. Ducts supply cold air generated by the air conditioner to various rooms in the home.

Why does my air conditioner make a squealing noise?

Squealing Noise A squealing noise can come from your air conditioner whenever there is high internal pressure. High internal pressure can build up inside the compressor over time — and although most air conditioners have a sensor that will signal the system to shut off automatically when this happens, those sensors don’t always work.

What does it mean when your AC is making a pulsating noise?

An air conditioner making a pulsating noise isn’t necessarily a bad sign — a little pulsing noise can be perfectly normal when the air conditioner is operating. But if your outdoor A/C unit is making a pulsating noise that you can hear from inside the house, it could be a sign that something has come loose inside the unit and needs to be replaced.

What does it mean when your air conditioner is screaming?

The most likely cause is a refrigerant leak, which not only damages your air conditioner but can also threaten your family’s health. Screaming might also indicate high internal pressure within your compressor, which is very dangerous. If your air conditioner turns off on its own, don’t panic. Consider this a good thing.

Why does my air conditioner make a cracking noise?

If you only hear this noise once in a while, usually shortly after the AC kicks on in the first place, it might be a simple matter of the duct expanding due to temperature. This is especially true if the noise sounds metallic and echoey, like someone tapping on a big piece of sheet metal. Ducts are made of thin, flexible metal.

An air conditioner making a pulsating noise isn’t necessarily a bad sign — a little pulsing noise can be perfectly normal when the air conditioner is operating. But if your outdoor A/C unit is making a pulsating noise that you can hear from inside the house, it could be a sign that something has come loose inside the unit and needs to be replaced.

Why does my air conditioner make a whistling noise?

If an obstruction blocks the airflow in your AC, the high pressure on the blower motor due to lack of air will cause high-pitch whistling noises. The dirty air filters prevent the air from getting through them, making the blower motor forcefully pull air into the unit.

What kind of noise does an indoor air conditioner make?

Indoor Air Handler Noises: sounds are coming from the air handler/cooling or “blower” unit located indoors. See AIR HANDLER & DUCTWORK NOISE DIAGNOSIS just below.

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Ruth Doyle