My diplomat dishwasher has 3 constant lights on???

Hello there my diplomat dishwasher has 3 constant lights on which are 2nd 3rd and 5th. I have bailed out the sump inside the dishwasher as this was full of water and also checked the sump underneath the machine which is completly dry.
the machine will start up fill the sump inside the machine give a bleep then stop working any suggestions please would be appreciated.