In the middle of a cycle the drum when the drum periodically stop turning it sometimes wont start again on its own (but will if i press the stop/sart switch) and then eventually gets an E50 error.
When it does start I notice that immediately before starts there is a click (like a relay), but when it won't start there is no click. Pressing the start button will get the click and a start. The click appears to come from the PCB area.
When it starts the motor works fine and whenver there is a click the motor starts.
Conclusion: Tested motor run capacitor and seemed faulty so replacement ordered, fitted and machine just completed full cycle.