I ran into this same issue yesterday (and have before- I always write as repair) on a one year old home during an end of builder's warranty inspection. Cooling fins completly covered in lint on two sides of the unit. The client asked how to remedy the situatuon. I told him to be prepared for an argument with the builder.

I do not of know of a code that prohibits this but what about manufacturer's install guidelines. Does anyone have any condensing unit install guides that state that this is a no-no? Seems like that would be justification as manu. specs often trump code?

Any input would be helpful. As I certainly do not think my client should have to constantly clean the condensing unit, or worse have to pay someone to do it.

Thanks,
Eric