Hotpoint Aqualtis non responsive

[jeffo]

Yesterday our Hotpoint Aqualtis washing machine (model #AQ113D697E) stopped before the end of the cycle.

For some time now it has occasionally remained on 1 minute remaining.  We found changing the dial to spin and starting the spin cycle would always resolve this particular issue.

Yesterday it powered down.  None of the buttons where responsive.  There was washing in the machine,  It must have been near the end of the cycle because there was water in the bottom and the clothes where wet. The door unlocked. 

I removed the drain plug from the front of the machine, and drained a few litres of water.  There is nothing blocking the impeller.

I unplugged the machine and plugged it back in.  It appeared to turn on;  the light above the power button is green.  there is an amber light above the child lock.  the dial turns and the lights respond.  the start button is pulsating.  

However none of the buttons respond.  The machine cannot be turned off without unplugging it, although if left it will shut off eventually.  

Has anyone seen these symptoms before?