2018 c2 front bulkhead ac unit leaks water on the driver there is no water coming out of drain tubes i blew them all out still nothing then i noticed when i turn bus off the water starts coming out of the drains so i started it up with ac on hi again no drain i turned it to low and then the water came running out i see there is some mess in the evaporator box could that be full of dirt but y does it drain on low and not hi very strange
the extra wind from fan on high keeping it from draining , and with low or it shut off the water is able to drain, dirt is probably clogging up a drain
OEM trained in wiring and all engine platforms for over 20 years