This video describes how to replace the capicitors in an rv air conditioner.
How to replace rv roof ac unit.
Removing the main unit from the roof.
Make sure to unplug your main power before working on the air condition.
It would cost more to fix then just replace as long we did the reinstall ourselves.
Use a wonder bar or putty knife to pry loose the caulk and or butyl tape that was used to make a watertight seal on the air conditioner.
After you get the air conditioner free from the roof it is time to lower it down off the roof.