SOURCE: No cooling, suction pressure reads vacuum Split AC
The unit is restricted, reprocess the system, flush and vacuum it thoroughly.
SOURCE: Extremely high head and suction pressures
disconnect the blower and turn on the ac.see if the coil frosts evenly.when you had the system open,you should have changed the liquid line drier.
SOURCE: BRIVIS EVAPORATIVE SYSTEM LEAKING WHEN NOT OPERATING
This normal and expected behaviour. As water is temporarily stored in the evaporative cooling unit there is a risk of bacteria developing (ir Legionairres disease) so the unit dumps the water periodically when in use or about 1 hour after the unit has been turned off. This means the water in the unit is constantly 'fresh' or fresh enough anyway so there's less chance of bacteria developing.
SOURCE: ac capillary tubes
Sounds like you have a clogged cap tube. Yes they should both be sweating, I would expect your low side pressure to be lower though unless it is real hot in the camper. You can replace the tube but make sure what goes in is the same diameter and length because that is all engineered for proper metering into the evaporator.
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