Bosch Classixx 1400 express won't rinse?

Bosch Classixx 1400 express intermittent fault.
Wash cycle continues for ever counting down the minutes to 1 then staying at 1. If you stop it and put it on "Rinse" it then rinses, drains & spins as normal.
I've checked the water in valves, the element heats up, the pressure valve pipe is clear, the filter is clear, the drain pipe is clear, the pump pumps-out fine in the rinse cycle.
I can only assume it's the controller.