HWH 610-625 Computerized Level Control

dougrainer wrote:
1999 Tiffin. Is the control panel mounted on the floor next to the drivers seat? If so, I will bet LF tire rain water has corroded the control board. If on the floor remove the 4 screws and look at the Printed Circuit board. It will be evident if it is corroded. Doug

Interesting, I had to replace my control board which is on the floor also. I thought it was because I left the window open several times and rain got inside but when I removed the control panel the under side was covered in mud so I think your bet is right. The new board was a little over $100.