Yeah I think that what is actually happening is frost (white flakey stuff) is not forming on the evaporator because I use a flat plate evaporator and only set the fridge to run as a fridge, not a freezer
. So the evaporator is getting cold enough during cycles to keep the box temp between 38-39 degrees. Moisture forms on the evaporator as its condenses from the air in the box. When the unit cycles this moisture freezes into ice (clear not white flakey). Between cycles the evaporator's temp rises to that of the box or close say 35-36 degrees maybe. At this temp the ice melts back to condensation
and sometimes drips off. Every other week I need to sponge it out of the bottom of the box. So all in all this is probably not a problem its just the result of setting my box to run as a fridge and not a freezer
. Im using a Dometic CF-40 standalone unit as a freezer, set to 0*F it pulls about 2.5amps when running and runs about 10hrs per 24.