user,

The evaporator is the coil in the attic. The condensor is the coil
outside.

If you have a leak in the lineset, run a new lineset exposed up the
outside wall hidden inside a downspout. Run the downspout up into the
soffit. Looks nice, especially if you already have real downspouts to
match. Abandon the old lines in the wall. That is what I have done
many times. Line sets DO leak inside the walls, I have seen it many
times, but I would have someone else check the units one more time to
be sure.

Stretch