Siemens SE64M359GB/93

hi guys.

Wierd fault on this dishwasher.

Led and other lights go out but comes back on intermittently and dishwasher fails to operate.

Have checked for broken cables etc but nothing showing.

Checked on/off sw and lock micro but seem ok.

Changed module and it worked ok for 10 minutes then back to fault.

I feel sure it’s a connection problem somewhere.

Has anybody else had this fault ?.

Thanks.

Chris.