I have had my coach over 1 1/2 years and never noticed or had a problem with this. Looked down and saw a streak of water on the floor. Traced it to a trickle coming out of the frig door. The condensate tray inside top under the alum. fins had a little water in it. It has a drain tube connected, so found that it drains or is supposed to drain into a black plastic pan outside where the frig burner is located. I picked up the tube to see if it was plugged. Sure enough, it had a black plastic plug in the end of the tube. Not sure why it was plugged, but should not be plugged in any case. Just one more thing to be aware of.
Happy hunting.