LG 8008R compressor runs one minute then fan blows 3 minutes

My unit is definitely in Cool Mode, but acts like it is in Dry Mode. Dry Mode is meant for keeping humidity down with minimal cooling. However, my unit seems to think it is always in Dry Mode. I have unplugged it, cycled through the modes, and screamed at it. No matter what I try, all night the cycle repeats - compressor on one minute, fan blows for a few minutes and the cycle repeats. This unit is 2 months old and worked great until a few days ago. My bedroom was ice cold before and the unit had no problem at all.