LG wm-13220fd OE code not spinning

Hi i have a lg washing machine which stops at end of drain cycleand brings up OE code which looking on line tells me that there is still water in machine so will not carry on to next programe. i have checked filter and also cleaned out drain pipe there is no water in the machine but still getting code and door locks
Could there be a fault in the sensor which senses if there is any water present if so is this the hall effect that is a fault