Thanks for the reply.
Float height is set to 13mm.
I tried different coils it's the same.
There is no damage on the loom.
Servo motor doesn't move even with the cables off it stucks at low position. It's moving only one ditection. Power valve cables are connected right way. I moved it manually to HI position and disconected it. I can move the power valves easy by hand.
Is it possible the pickup sensor to fail ?
I didn't swap pickup senaors yet.