Chris Bryant weighed in above, and his suggestion to Clean It is always good! He has a blog post on this but I'm having trouble finding and linking it.
Chris also helped me (like so many others! Bless You, Chris!) when he said what basically comes down to this:
The Plastic Shroud should be baffled at the edges of the Condenser Coil (the one visible at the back of the A/C, where the Outdoor Fan Blade is). Baffled in a way that air being exhausted out the sides of the Shroud isn't also being pulled INTO the Condenser Coil from INSIDE the shroud. There should be foam strips in there, shaped to close the air path around the edges of the Condenser Coil. If yours are gone, the A/C will overheat, and draw more Amps.
