Re: Diplomat Dishwater – Light on – Code needed
That’s indicating that the dishwasher has a leak and the aquastop safety device has been activated.
No reset for this one as the leak will need to be identified and rectified before doing anything else.
There may be water in the base so I would suggest it is disconnected from the power and an engineer attends to repair it for you.
The £70 call out you mention will almost certainly include some labour time, quite often enough to carry out the repair.
Dave.