My ADP8352 Diplomat dishwasher fault All lights flashing?

Hi, My diplomat integrated dishwasher has a fault. Evry time i close the door all the lights on the controll panel flash and the machine beeps. The drain pump operates while doing this but nothing else. i can not get it to perform any cycle. it has happend a few time sbefore but then after a while it sorts itself out. Does anyone know who or wher I could get it repaired? Would it be the programm controller sticking? Thanks if you can help!