ac just blows air, not hot air but not cool, had the freon filled 2 mos ago

What is your question?

Mechanic seems to think it is the evaporator for the AC. to complicate things we live in Central America, so I'm not sure he's diagnosing anything electronically. It appears that this part of the system is hard to access. the conversation is in Spanish so I didn't catch everything on the phone, but I am going to go and speak to him in person, what questions should I be asking?