Indesit 24 in. IDL700 Built-In Dishwasher "idl 730" Questions

...3rd green LED's on and off. Any idea's ?? could be blocked filter according to instruction book for IDL ...

...IDL 730 Wash program seems to work to the end but 2nd and 4th lights flash. Have done all the usual, checked filter etc. All clean as a whistle. Help!! as you have checked that all the filters are ...

...IDL-730, IDL730) and after pouring in salt until full for ages, without the light going out, I finally decided to do the reverse. I left it to run down the salt over a couple of months, until well ...