Hotpoint FDL570 stalled for hours then On/Off and Start/Pause buttons flashing

My wife told me that the dishwasher had displayed flashing lights and had not cleaned the dishes at all. She turned it off because of the fault, but couldn’t tell me which lights had been flashing. The tab had been dispensed, but the bottom of the machine looked dry. I wasn’t sure if there had been no water intake or that the water had drained out again without going through a wash cycle

I checked that water was available at the inlet and decided to run a ‘Normal’ wash cycle to see what happened and hopefully see the lights flashing for myself. It took water in and heated it and then just sat there on ‘wash’ for a couple of hours seemingly doing nothing. I checked a couple of times – there was water in the bottom still and the few dishes I had put in were untouched. After about 3 hours it started making a noise and draining water out, but the On/Off and Start/Pause buttons were flashing very quickly

Can anyone shed some light on this please?

Many thanks

Mark