No power to leveling jacks

I have a 1996 HWH 200 series and it does have a control box/board. I had this same problem and had to replace the board. The board was located under the control panel on my system. HWH has nice troubleshooting guides online to help you determine the problem. Also I have found if you call the parts department you can talk to them immediately and they are helpful. The helpline did not return my call until after the system was fixed. I think this time of year the help line is understaffed. They respond much quicker in the winter.