Hi, I have an aeg 60870 dishwasher showing error code 30 and the pump is going all the time, even when you open the door, any suggestions of things i could try please?

the brain is gone

Sounds like the control panel is defective, a very expensive repair.

There is a problem with drainage. Check the drain line connected to the disposal or peatrap. Make sure it is not plugged. Otherwise you can disconnect the drain line and put a wet vac on it to try to clear the hose

Could be: faulty power board (completly or only relay for heating element), faulty wiring between heating element and power board, faulty heating element (interruption, short circuit or current leakage,on some heaters faulty thermal protection).

Depending on the model, the display shows the i60 fault code or the LED end of the program will flash 6 times (only model without display).

Dado

Error "i30" means that water remains in base because leakage or overflow. In this case, in order to prevent flooding, drain pump running continuously.
When we talk about AEG dishwasher, drain pump works even the power is turned off (must be connected to the wall outlet, otherwise anti-flooding system will not work).
The noise what you heard during operation indicates that something is blocking the drain pump.
Remedy: you should first remove the water from the bottom of the dishwasher and determine leakage then check why the drain pump makes noise.

If you work around the dishwasher, you always take care that appliance must be disconnected from the power supply.

Good luck.
Dado

The most common cause of a fault "i10" is closed valve on the water supply line. So this failure indicates a problem with filling of water.
Possible error causes:
Closed water tap, Inlet valve faulty, inlet hose bent, softener system clogged, pressure switch or pressure switch hose obstructed or leaking, wiring from pressure switch to printed circuit board (PCB), wiring from inlet valve to PCB and finally PCB.

Dado

The most common cause of a fault "i10" is closed valve on the water supply line. So this failure indicates a problem with filling of water.
Possible error causes:
Closed water tap, Inlet valve faulty, inlet hose bent, softener system clogged, pressure switch or pressure switch hose obstructed or leaking, wiring from pressure switch to printed circuit board (PCB), wiring from inlet valve to PCB and finally PCB.

Dado

Matthew, in most cases when a circuit board repeats the same action over and over, there was a short and loss of communication with associated controllers. Obviously you have power to the control unit, so that means the instructions from the controller to the solenoids is lacking. You are correct in assuming the board needs replacement, however you must determine is the cost for replacement is worth the time and effort. An old machine means one repair after the other. If its relatively new; then it may be worth it.

i fixed the problem by tipping the machine over slightly, as suggested by other members, about a pint of water came out the bottom and it now seems to work perfectly.

there is water in the base of the macine. lean it over to the side to get all of the water out then try again.