Refridgerator Problem- Nircold 1210

[hunts800]

We are on the road and noticed water in the pull out drawer at the base of the fridge. Checked water collection tray in the fridge and it had a small amount of water in it, and drain hole did not appear to be plugged. Went outside and opened panel and discovered water collection cup was completely full and running out into the compartment . There is no drain from the collection cup, and the manual seems to say the heat from the fridge should evaporate the water. Not happening.
I drained the cup, and dried things as best I could. Will keep an eye out, but any ideas as to what caused this problem or what to do. I plan to call Norcold in the morning.