E40 code appears on my aeg washer dryer L16830, changed the door interlock, but still keeps clicking three times and the E40 code appears.

Family error code E40 is visible to customers and (could be E41,E42,E43,E44 and E45 only visible in service mode) means problem with open door or door interlock.
I suggest rapid reading alarm code when appliance is in normal operating mode (e.g. during the execution of the washing
programme):
Press and hold down START/PAUSE and any of the option buttons for at least two seconds: the LEDs initially switch off, and then display the flashing sequence corresponding to the alarm.
The alarm sequence continues as long as the two buttons are held down.
E41 - Door open
E42 - Problems of door closure
E43 - Interlock power supply triac faulty
E44 - Door interlock sensing circuit faulty
E45 - Door interlock sensing circuit triac faulty

Possible causes:
Door interlock faulty, wiring faulty or PCB faulty.


Dado

Its a defective door lock. It might have to be replaced by a techie! Hope its under warranty

E40 relates to the door being left open when the programme is started, it maybe that the latch was not pushed over when the door was shut.After the door is closed again the fault should go away. If it does not and you hear alot of clicking from the door lock you may just have a door lock at fault.Code E40 is door not closed, could be a mis-aligned door or faulty door switch.-------------But if door is closing properly and you are confirmed that door is getting properly locked, then other possibility can be gunked filter or blocked drain pump.It requires cleaning internally.The procedure is as follows:--- Towards the bottom right of the machine is a pull-down flap.
Drain the machine - there's a tube at the bottom of the machine
with a plastic plug - you'll see a butterfly handle, pull hard; the plug
is a round ball on the end of a stick.
Unscrew the large diameter thing (pump cover) -
Don't do this before the drain step!!!
Withdraw the filter cylinder and remove any gunge - the
filter port has two ports - the left one is the impellor
pump and the right one is the discharge pipe; feel to ensure
these are not gunged up either.
Reassemble in reverse order - as Haynes say.
Almost every programme necessitates a pump activation to
assure that the machine is empty of water .-----------

E40: Door open, Interlock, wiring or main PCB most likley going to be faulty door interlock.

Turn the power off, unplug the machine and take the top off your machine and on the front right of the machine there is a plastic case with lots of wires.

Put the wires out one block at a time, keep putting them in and out, this will help the connection to seat.

Try the machine again and the problem should be solved.

If not you may need a new board.

E40 is an error from the door locking mech (interlock).this is the bit behind the port hole door frame ,where the door striker pin goes through hole.hope this helps you.held on with 2 screws and you need to remove plastic clamp from door gasket to gain access.
E40.door not locking.door interlock faulty or triac faulty on pcb
hope this helps pls do let me know

You can get the manual here line 20.

http://www.usersmanualguide.com/aeg/washing_machine

Good Luck And Please Rate FixYa!

E40 is a door related problem. Possible causes are faulty door interlock or door circuit triac on the main PCB.
Most likely cause is the door interlock.

hi there e40 fault is a problem with your door interlock. get it replaced and all will be fine..

e40 fault code is water level too low during heat which is very strange to appear at start-up. does anything else happen? without being certain, points to a main module fault