Samsung smart wash b1245s doesn t work

i have a samsung smart wash b1245s washing machine.last week i was using it and it stopped working.

i tried to restart and didn t want to go.

the day after i tried to put it on and strange enough it started .... i tried all the program and it seemed ok.

However after about 25 minutes when the spin started machine stopped again. and didnt want to go further.

I cleaned the filter tried again and it started, tried all the program and it looked ok.   .....then stop again.

Behind the eletronic panel you could hear a little sound like when two cable are not touching properly and do a sound like zzzzzzz.

i removed the cover checked all the little plugs and i started the machine with the spin program.

it finished with no problem.  fine let s put the clothes accumulated in a week....

when the spin was half way showed the error DE (door open) but in a second disappeared and the machine went on by itself, then after few minutes after again same error appeared and machine stopped.

tried to restart again but now it won t start at all and show me the error DE.

i disassembled the door circuit cleaned (it was like a little short circuit appened) but machine sitll show same error and doesnt start.

is there anyone that can tell me what is wrong?