As you can tell from the question, I am not an HVAC person, but I recently discovered a rather significant cold air loss in my attic due to a shoddy job of evaporator replacement a few years ago. No telling how much money I have thrown down the drain cooling my attic!
Anyway, I'm up there doing some cleanup and a little sheet metal work to seal this beast off again, and I wonder if I should do anything to clean the evaporator while I am in there? right now, I can't tell how dirty it is if any because it was kind of frosty, but I have turned the unit off and will go check shortly.
If I do clean it, what should I use? Personally I'm guessing that I should leave it alone, but want to hear from experts. And I know I should hire a professional to do this, but I'm not completely inept, however I am completely broke.