It should be level from side to side and.
How to reduce noise from window air conditioner.
If you find that as you press your hand against the sash the sound changes in pitch then you should put some wooden shims in the gap between the window air conditioners frame and the sash.
Tighten all screws to quiet a noisy window air conditioner one very easy step to take is to tighten all screws tap down rivets and re drive nails.
You should check carefully the window all round the unit.
The noise a window a c unit makes does vary between manufactures but there is somethings you can do to help get rid of unwanted noise.
Pay special attention to any gaskets.
Tips for reducing noise in your existing a c window unit.
Here are some of the things i have found over the years to help quiet a unit.
If improperly installed.
If however the pitch of the noise changes when you press your hand on the glass you.
If the noise is coming from inside the window unit check for twigs leaves or other debris.
Proper positioning lessens the vibrations leading to reduced noise levels.
You should tighten the screws holding the front panel onto the unit.
Install the unit as far from bedrooms dining room and living room as possible cover it with a professional sound blanket use natural enclosure like a wooden fence and or shrubs and bushes that.
For noise originating from inside the unit.
First verify that the original installation procedures have been followed properly.
Here is a quick re cap of all the steps you can follow to reduce noise from an outside air conditioner.
How to quiet a noisy window air conditioner step 1.
You should then turn the window air conditioner on and press your hand against the sash.
Be sure that all the compressor mounting parts.
If you discover that your unit is not well placed you can work on putting it in its proper place.
Tips to help quiet down a window air conditioning unit.
Indeed screws and fasteners that secure the air conditioner to the window frame may loosen and thus squeak when vibrating during normal operation.