The noise a window A/C unit makes does vary between manufacturers, but there are some things you can do to help get rid of unwanted noise.
Below are some of the things I have found to help quiet a unit. If you have any tips, let us know in the comments below.
Tips to Help Quiet Down a Window Air Conditioning Unit
- Foam Insulation
- Be Sure the Unit is Level
- Hang a Blanket
- Small Adjustments
- Buy a Better Unit
Almost every manufacturer will give a slider to fill the gap, which is thin and does a less than desirable job.
Using foam insulation on the sides is much better at muffling the noise and also helps keep the cool air inside.
It will depend on how big the gap is as to how much installation to get.
Example Window A/C Insulation on Amazon
Duck Brand Window Air Conditioner Insulating Strip Seal, 2.25-Inch x 2.25-Inch x 42-Inch, 284423
While the window is likely to level, for the most part, even small bumps can throw a unit off.
Using a level to see if it is right is necessary without assuming it is.
The components in a package are all set up to work when it is flat, so even if it is slightly off, vibrations will happen, making noise.
I have seen this at a friends home, which does help keep the sound levels down.
Don’t hang a blanket directly in front of the unit but away 4-5 feet with the sides open.
As long as the room is big enough and you are situated on the other side, the room will still be cooled, and the noise level will go down.
Not everyone will be able to do this, especially if you have a small room, but for large spaces, it can help.
Sometimes the cage will rattle at certain locations.
Using something like a small piece of insulation pushed between the cage and the window will stop it from vibrating.
It may seem simple, but it does work and is something I have used in the past to stop a rattling sound.
Some units are made cheaply, and mass-produced quickly.
While they are more affordable, the compressor, fan, and other components will be louder than a well-built unit.
All window units will make some noise, but some are quieter than others.
This may not be an option if you are on a budget but if you need a new unit, here is a lit of units that make the least amount of noise.
Window air conditioners are easy to install, set up, and cool space at a much lower cost than having an HVAC company install a system.
Unfortunately, since all the working parts are located in one package, they will make more noise than other options.
This doesn’t mean that they have to rattle about making so much noise as to make a living space uncomfortable.
The above are just a few ideas to use.
Have you experienced a loud unit and have a trick or tips? Let us know in the comments below.