I have a 2014 3001w and haven't seen any cracks in mine. We have about 10,000 miles on it since April of '14 with no real issues. I did find a previous thread for WJ 3065 units: Crack in another 2011 Rockwood Windjammer 3065
We need to wax ours also, so we will be looking closely at it soon. Hope you get it fixed and quickly.
D_B Travelers - 30 nights in 2016... so far. 54 nights in 2015. 2014 Rockwood Windjammer 3001W Diamond Pkg, 2015 GMC 3500HD CC DRW Duramax, Equalizer 14K hitch, TST 507rv TPMS.
"Happiness? A good meal, a good cigar and a good woman - or a bad woman; it depends on how much happiness you can handle."
George Burns (1896 – 1996)