To clear a F24 fault from a Kenmore HE2T washer, first unplug the machine for about five minutes to reset the control board. After plugging it back in, select a different wash cycle and start it to see if the error persists. If the fault continues, check the wiring and connections related to the door lock and control board, as this error may indicate a communication issue. If necessary, consult the user manual or contact a technician for further assistance.