Coleman Mach 15000 BTU A/C Issue - Electrical in Nature

If its dirty and clogged up, it will draw A LOT more power trying to run and cool, I would get up on the roof and remove the shroud and check that its not full of leaves, dirt, dust, or a big one in my area cotton from the cotton wood seeds.

I have to clean out the AC wall-units in my house yearly or they will start doing the same thing (drawing too much power popping their breaker) from all the cotton wood crud in them.