OK, This is my best friends house ( I know no work for close friends and family). 2 story Colonial house on crawl. 1800 and some change 1st floor, which is the floor with a big problem. 3ton H.P. 1st I have never touched this unit but 1 time in 6 yrs, I do this for a living and don't just go around maintaining peoples stuff for free cause it brings me joy. The 1 time I did go look at it for him he said he was having mold in the registers. I go, it has clean effects filter, never cleaned, a/h outside full of mold and drains were backed up. A/H is in crawl with ductwork. At time of start up I told him that his cralw being a foot or more lower than grade was gonna be a problem...then he goes and piles mulch up around the house and slopes the crap back to the house, brilliant.
Well we get into a big word fight, he insults me heavily say's the a/c unit is blowing mold his kids are sick alergies all the time the whole nine yards...all the while he pretty much alway's has standing water under the house. We chillout and chat...I tell him I'll look into it. Well I go under the house I find I left the supply plenum loose from where I took the door off a few years ago, so the unit was dumping some air in the crawl and I had a small return leak at the unit. I fix my issues, cleaned the unit up the best I could and replace a piece of flex from plenum to trunk line. Naturally everything is sweating, mold all over the place under the house. Here is the kicker, they really think it's all my fault. I am at a loss on how to handle this situation...had it been just a customer I would just say call a specialist but this is touchy.
Coastal NC house by the way. I am about 1/2 ton oversized...they decided to do blown cell insulation after I did my job. At the time I saw it not to be an issue. I put in Trane 803 stats the other day, house is in the mid 45-47% humidity range in mild weather.
Any words of wisdom?