I know it's unlikely, but I am hoping that someone has seen this message before on their fridge freezer and can tell me what it means and how to fix it.
We had a small power cut and when the power came back on the display just says "ES". This isn't listed anywhere in the user manual, I can't find anything on-line and annoyingly this all happened about 20 mins after the customer helpline closed until tomorrow morning and meanwhile and all our food is slowly warming up 
It is Bush, model BSBSFFB.