Smeg DW1 409c integrated dishwasher reset button????

[Faye2606]

Hi i am in desperate need of help i have an integrated smeg dishwasher model number DW1 409c and it keeps stopping mid cycle. I have had a repair man out several times but all he seems to do is reset it and i was wondering if anyone could tell me how to reset it myself?!?!

It starts the cycle as normal and then after 5 mins there is a long beep and it just gets stuck there when i open the door the far left red light is flashing and the far right red light is lit but not flashing. I have tried lots of things but cannot seem to reset it.

Please, please help. Thank you