Re: Candy CDI 45-80 fault code E4
E4 means the anti-flood device has been operated wich could have been caused by a few things to be honest.
Poor loading, overfoaming, an internal leak. Lean the dishwasher backwards or forwards slightly and you should see some water run from the base (towels at the ready ;)).
If it recurs then it’s engineer time to be honest, check Repairs@ for one :
Power off before checking anything yourself please :zap:
Dave.