When it gets down to the last of the water is the drain pump still running? Can you hear it? If it goes quiet and the pump has stopped then it may be overheating. It has a thermal cut out which will switch the pump off until the pump cools down. You could check when it goes quiet, by turning power off & tipping the machine back against the wall and locate the drain pump. Touch the metal part and see if it feels really hot. A good pump should be only a little bit warm. If it is hot then you need to fit a new pump.
Lincoln Appliance NZ, July 2015