Are you able to stop it and reset the cycle?
Also are you looking at fixing this yourself?
To reset it all you need to do is turn it back on and then press and hold the start button for about 3 seconds and this will reset the control board.
Then once its reset you can retry a cycle. Try a qucik wash again and see what happens.
But if it stops again and the door seems fine and it is starting a cycle but not stopping then its possibley a faulty control board as the control board is in the door frame so that could have got damaged.
But once its reset just retry a quick wash and see what happens and let me know.
No thats not normal as from memory on these the light should be soild and you should hear the noises from it like it filling with water and washing.
As its not doing this then theres something wrong with it and theres a good chance it could be the control board in the door im afraid.
Yes thats who you need to call out is a normal washer/dishwasher engineer.
But as you say its only 1.5 years old then its still under warrenty. As all Bosch appliances come with a minimum 2 year warrenty so just give Bosch a ring on 0344(###) ###-####and they will call out and fix it for you.
Just dont tell them that someone fell on the door as they may not cover it if they know so if the door doesnt look damaged just dont say anything about that.