There is a anti-flood tray at the bottom of the machine and if water leaks into it it activates a float switch which activates the pump. If you can drain this water away the machine will be reset but your leak might still need fixed. You could try putting the machine slowly on to its back which will tip the water from the drip tray onto your floor. Mop up and return your machine upright again and it should work.
Archie Jackson, March 2008