that's what i was thinking, i also noticed alot of condinsation inside where the exchanger? is above the heater in the main vent......
with the feed/return lines one has foam insulation on it where the other does not, the one that froze was the insulated line, the other seemed kina hot.
if i do reverse the wires the fan does blow oppisite dirrections, the condensor pump runs off of the same line......these need to flow in one dirrection correct?
thanks
