Very common problem with the auto reset circuit breaker for the hydralic pump. You can replace the auto reset circuit breaker or double up on it like in this picture:
http://s906.photobucket.com/user/BB_..._1136.jpg.html
This is the service bulletin from lippert describing how to up grade:
http://www.lippertcomponents.com/LIP/0058.pdf
Hope this helps. Jim