error bleeps on diplomat ADP8322?

I have an ongoing issue with the above dishwasher: when attempting to strart a cycle it starts then within a few seconds it stops and starts bleeping continuously, the green LED has change to the rinse function...I have to poor water into the machine reset and start it again.......this is intermittnet I have cleaned it out but to no avail...also I cannot selct anything above a 50 cycle