What is the usual warranty on a new unit. We bought a Sundance 3100ES on May 25, 2010. We noticed a crack on the skylight over the shower (outside pane). I thought that there was a 2 year warranty. Also there seemed to be some water leaking on the kitchen counter around the window. My husband did put some sealant around the outside of the window. He said that it looked like they did not go all the way around the window. Also, there were some brown streaks coming from underneath the storage door on that side also. I hope that there is no leaking inside the wall.