could be the plastic door handle has broken trying to open the metal latch. you can get the top off , two screws at the back, plug out! you can lever the the little latch with a stubby s crewdriver.
chris, September 2013
these machines do not have filters as such, they have a sump trap in the rubber hose coming from the underside of the tub and leading to the pump at the rear of the machine.
dr x, April 2011
how do i get to the filter ? please
saffy, February 2011
machine filter may be partly blocked,or check the pressure chamber is not blocked this fools machine into thinking it still contains water.