I have a Fagor Innovation L7712-S and cannot get the door open

Try unplugging it for 5 minutes to reset.

Defective door seal or the door got bent by a user having a bad day.

F04 = Door Lock

The condenser core is dirty is my bet and the pump is worn out.

disassemble door , clean glass , reassemble. door.

I fixed my Fagor disgwasher spring last night. The symptom was a bang and the door got heavy. Investigation revealed a broken cord. The parts are available at around 20 UK pounds per pair. They consist of a cord with plastic mouldings at each end. A heavy duty spring sits inside the washer parallel to the door bottom and is streched as the door is opened. I would not recommend buying the spares as getting them off the spring is almost impossible. I had a vice with tools and gave up. Instead I bought some similar cord (try a ships chandler/dinghy shop), one metre should do (99p). Remove the spring and cut the cord off at the moulding. Put the spring in a vice and drill out the cord. Start small (2mm) and work up. Put the new cord through the hole. Bend the spring and use a small screwdriver to fish out the cord. Tie a knot in it. Take a large flatblade screwdriver and open up the coils so the knot will pass through. Drill the other plastic moulding and repeat. The cord length between the mouldings was 280mm but measure the unbroken one. The dishwasher I had a cover clipped in place at the bottom of the door. Lever this forward and the spring is easy to remove.

could be a faulty door switch. with the door open the power will not go to anything. if you close the door and no light comes on then it thinks the door is open.

Click on : Door locked

make sure the strike is adjusted correctly.. it may have gotten bent out of place.. the strike is the little metal tab that comes off of the top of the center of the tub and goes into the door when you close the door.