What does it mean when your AC rattles?
A rattling noise can mean that your air conditioner is starting to deteriorate, and some of its parts are loosening. Another culprit could be the fan, which rattles when loose. Your first line of defense is to check for loose screws or bolts in the unit’s casing, clean condenser coils and change your indoor air filter.
What makes an air conditioner noisy?
If your air conditioner is making a shrieking noise, this is an indicator of an issue with the fan motor. This sound may also be caused by a broken motor in the compressor of the condenser system. A screeching or squealing noise may also be caused by a damaged blower fan motor inside your house.
Why does my AC rattle when I turn it on?
The noise would start when the compressor engages due to the increased load on the engine. Compressor Clutch: The compressor clutch is a high-wear item, and if it’s worn out, it can create a rattle during operation. Some vehicles can have only the clutch replaced, but some require replacement of both the clutch and compressor.
What to do if your AC is making noise?
If you feel comfortable checking your drain line yourself, turn off your system and inspect the drain line. If not, schedule an appointment with a technician. Ultimately, if your AC is making any of these air conditioning noises, don’t ignore it!
Why does my AC make a grinding noise when I turn it on?
Pulley: If the compressor pulley bearings are failing, they can make noises, generally a grinding, roaring or squealing noise. Belt: If the serpentine belt is worn, it can slip when the compressor engages, causing noises. Idler Pulley: It’s possible that the noise is actually from the idler pulley if its bearings are failing.
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.
The noise would start when the compressor engages due to the increased load on the engine. Compressor Clutch: The compressor clutch is a high-wear item, and if it’s worn out, it can create a rattle during operation. Some vehicles can have only the clutch replaced, but some require replacement of both the clutch and compressor.
Pulley: If the compressor pulley bearings are failing, they can make noises, generally a grinding, roaring or squealing noise. Belt: If the serpentine belt is worn, it can slip when the compressor engages, causing noises. Idler Pulley: It’s possible that the noise is actually from the idler pulley if its bearings are failing.
Where does the noise come from on an air conditioner?
In most new air conditioners, the bulk of the noise comes from the compressor. You can remove the top of your A/C outdoor unit and install a sound blanket over the compressor — it just sits right on top of it. This will muffle much of the sound of the unit.
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.