I have a 2011 sportsman ho 500 on demand AWD. I love ths machine. It locked itself in awd . We drained fluids and noticed it was a lot of water in it. So much that some ice chunks came out . Darn winter! Put heater on it and then new demand fluid in. Finally came out of awd for a bit but went back when I picked up speed. Drained fluids again and was milky so must not have gotten all water drained first time. I put heater on it for entire day to make sure this time. Added demand fluid again took it for drive and seems to be fine around yard on grass but as soon as I go on pavement it went back in to awd. Please help!