Why Is My Portable AC So Loud?

A portable air conditioner is a great way to stay cool during hot summer days. They are energy-efficient, affordable, and moveable. One drawback of these units is their noise level. Why are portable ACs so loud? What can you do about it?

What is a Portable Air Conditioner?

A portable air conditioner is a self-contained appliance that removes heat and humidity from a room. It utilizes a compressor to cool refrigerant (located inside the unit) by passing it through coils. A fan then blows the cool air into the room. These units provide cooling to areas without central air conditioners and spaces that need supplemental cooling. They are portable, compact, affordable, convenient, and easy to install.  Often used in offices, bedrooms, guest, and computer rooms, portable ACs are also a perfect option for RVs, trailers, and recreational vehicles. They’re great for living spaces and apartment buildings that don’t allow window air conditioners. 

The Common Noises Of Portable Air Conditioners

The following are some sounds commonly heard from a poorly functioning portable air conditioner.

• Humming or buzzing indicates motor trouble or loose wiring/electrical components. 
• Clicking or rattling may be caused by debris in the unit. 
• Screaming and hissing are indicators of a problem with the refrigerant or compressor. 
• Banging and clanking may be caused by debris in the unit or broken moving parts. 
• Gurgling or dripping is likely an issue with the condensate line or refrigerant.

How to Reduce the Noises of Portable Air Conditioners?

You can take some actions to reduce the noise from a portable AC unit.

• Ensure the unit is in a well-ventilated area, as this can reduce the noise level. 
• Wrap a sound blanket around the compressor (available from an air-conditioner company or online).
• Clean the filters regularly. A clogged filter restricts airflow, causing the unit to work harder and louder. 
• Schedule regular maintenance with a reputable HVAC company. A well-functioning unit produces less noise. 
• Purchase a more efficient air conditioner as they tend to be quieter. American Standard units use variable-speed and multi-stage cooling that operate at lower sound levels, delivering quieter cooling.

How McMillin Air Can Help?

Is your portable AC loud? Are you concerned that your unit is not functioning efficiently? McMillin Air offers air conditioner repairs, maintenance, and service. We provide annual inspections and maintenance for all makes and models of portable AC units. We also sell high-quality new air conditioners. Contact us if your unit is too noisy!