Baumatic BDW 13 Problems with water not flowing into machine?

Machine starts as normal, drains out then a small amount of water flows for a few seconds then stops (I've had m/c out and can see flow into plastic chamber). Definitiely not water supply problem to m/c as I got soaked when trying it. Checked inlet solenoid valve is OK, power only gets to valve for a short while then stops. No error codes show. Checked float switch is OK. M/C is six years old. Any ideas? Anyone had a similar problem? Anyone got a wiring diagram/schematic?