Which pcb did you replace?
Was it the one on the left or the one with the leds on it?
display pcb p/n XXXXXXXXXX
located top left of dishwasher ( view from front)
Ok try this and see what happens.
Turn the appliance off
Press and hold the program selector button and the start button.
Keep them held in and then turn the dishwasher on.
After about 5 seconds let go and all the leds should be flashing.
Then turn the machine off then turn it back on and see what happens.
Let me know how it goes.
All leds remain ON!
Ok if that isn't doing anything then im afraid you are looking at a faulty main control board here im afraid.
If you remove the plastic control panel again the main board is on the left hand side opposite the display board. Replace that and this should cure the fault.
But to be honest most of the time if all the leds are lit its the display board at fault but the odd time it has been the main board so replace that and that should cure the fault here.
I will open up machine again tomorrow and check for main control board then get one ordered.
Ok no worries just let me know how it goes.