F1 error occurs when water leaks into the base of the machine & activates the float switch. Drain pump will start running to empty water from the machine and will not stop until power is switched off or float switch resets. You need to remove lower trim panel below door. Dry out the tray inside then run machine with panel off & watch for where the water comes from. Once you see water coming on to tray stop machine & repair. Make sure power is off at wall before putting your hand in near the wiring.
Lincoln Appliance NZ, April 2009