My bed is near the wall and when i put my ear on the wall i hear the sound created by the slightly vibrating or normal operation of the unit.
Attic ac unit vibration.
High efficiency ac units incorporate sound dampening technology and two stage variable speed compressors to keep noise levels below 55 decibels.
Climb up using a ladder and find the ac on the roof.
I have a central air and gas heat unit in the attic no crawl space just a slab.
In addition to making the unit hard to get to for service high attic heat can trigger the high pressure limit switch turning your condenser off.
Switch off the power supply.
Measure and make a note of the width and length of the base of ac.
To reset the switch you ll need to climb up into.
Bryant has changed the unit and this second unit is just as nosier.
The central air conditioner is by far the nosiest i have ever heard.
The vibration can be heard inside and outside.
My old 28 years old unit made half the noise and had no vibration.
Here are some simple troubleshooting steps to fix vibration pads for removing vibration noise from air conditioning units that are roof mounted.
I noticed a sound and it took some time to locate it.
Buy four vibration pads one for each corner of the unit.