Auto section control on berthoud sprayer

[cla2170]

Have a berthoud with section control that's worked through raven controller (accuboom) having problems with whenever I switch all the sections on, it starts continuously switching all sections on and off until the point it blows a fuse for the accuboom node. Works fine if you just have say half the boom on but whenever you switch more on, it starts this . Just wandered if anyone had this problem or works similar setup. Got dealer coming but saying a week before the can look at it. Checked for rubbed /broken wires , blown fuses etc but no joy. Thanks in advance

 

[Hampton]

Sounds like a short