Samsung P1253 keeps overfilling with water?

check that the pressure chamber small hole is not blocked this connect to the pressure switch, as water enters machine the air pressure rises this then turns off the incoming water
remove the top find the pressure switch, round thing with wires and should have a small plastic tube on it if not there s your problem ( find it & refit it) if fitted follow the pipe to its other end ,remove the pipe and inspect the hole will be probably bunged up with washing powder clear the hole out to its max size reattach the hose try it on a fill

wirecutterman
August 2010