AEG L 75480 WD error code E10

Hello Rob. A washer dryer should still fill with water on the drying cycle. There is usually a separate valve, which is attached to a plastic condenser chamber at the back of the dryer. The water flow from this valve is restricted so that it only trickles in water. The steam generated by drying the laundry is blown into this condenser chamber where it hits the small jet of cold water. This then converts the steam back into water and it is pumped out. So I would have a look to see if any water is trickling into the back of the condenser when it is on a tumble dryer cycle. As it completes the normal wash and rinse cycle okay it's unlikely there is a problem with the water supply. There could be an electrical problem, or the solenoid in question could be faulty.

Another area to consider is that sometimes the water that goes into this condenser chamber is prevented from running into the drum by a blockage of lint or limescale at the bottom of the plastic condenser chamber. I have an article that describes how everything works here Laundry comes out of washer dryer hot & steamy it may or may not be relevant. The faults I describe would normally cause the hot and steamy symptom. But if an error code steps in and aborts the cycle first it could account for it not displaying those symptoms.