I have a Flymo mower (the sort with wheels, not the type that hovers) that has worked very well for several years. This year it has started to cut out every few minutes. The problem seems to be that it has a cut-off switch that is supposed to cut the mower's power when the grass box is full. However, it is now cutting out when it's only about 1/4 full. When I empty it, it works again until it gets another 1/4 full! I wondered if anyone else has encountered this issue and perhaps knows of a way to disable it?! Thanks