take front cover off to gain access to the collection bag and fit new if full ,just below the bag you will see a plastic segmented filter , take this out,refit cover and use as normal .if vac doesn't cut out buy a new filter ,try not to use your vac until new filter is replaced ,.if vac still cuts out on the removal of the filter ,its likely that the thermostat witch is inside the motor is faulty .
mech monster, October 2011