My AC just stopped working. I had it tested and it is full of coolant and has no leaks. They said the compressor isn't getting any power. Any ideas on what it could be?

Thanks

 

A/C compressor clutch relay or fuse, I would check first.

 

Ec light on on the climate control module?
and per above have you checked the relays and fuses?
How did you check r134a charge without it working? The mb system is variable demand and testing it by pressure alone is not accurate. Overcharged system will shut down the compressor as fast as an undercharged system.