Camping Trailer A/C problem

[BananaTom]

Okay, so dirt is your problem, and is the largest killer of air conditioning systems.
With the condenser coils that dirty, it is like placing a piece of card over your vehicle radiator.

Same with the evaporator coil. It appears to be blocked with dirt, also restricting the transfer of heat from the air to the refrigerant.

Now, your question about condensation. Some of these types units use this water / condensation from the evaporator and drain it into a pan at the condenser coil. The fan blade has what is called a slinger wheel, which picks up the water and slings it on the condenser coils to help cool them off.

Most window units are manufactured that way now, and they do not drip condensation, it is evaporated on the hot condenser coils.

Make sure your coils are very clean, shiny clean, both of them. As dirt prohibits the transfer of heat.

I suspect that with you cleaning out all those leaves, the water can now fill the pan with water and evaporate .