I have an ARG Oko lavamat 72640 update. It keeps displaying…

Hi
Ok for the E10 you need to remove the top panel of the washer and from there locate the pressure switch in the right hand side. It will have a thin hose going to the bottom of it to the bottom of the washer.
Check this hose and see if theres any holes or splits in there. As this can cause the E10 fault. If the hose is fine then at the back is the water valve. On there are a few coils. You need to test these with a multi meter and see if they faulty. They should rea about 3.6K ohms each. If any are faulty then the valve needs to be replaced.
As to the E20 error code if the filter is clear and the pump is clear as well then you need to check the drain hose and were it drains to. If it goes under a sink then you need to check the spigot it pushes on to and see if its blocked.
But if thats all ok and the water valves are fine for the E10 fault then its possibley the pressure switch itself at fault. As the pressure switch can cause both the E10 and E20 error codes.
As if the pressure switch doesnt fill up it causes the E10 and if it doesnt release the air then it causes the E20. So if all the above is fine and its filling and draining still then its possibley the pressure switch itself at fault here casuing both error codes.
Regards