Check that the metal contacts on the mounting dock are flush with the surface of the dock. Check that the metal contacts on the unit depress easily and rebound level to the back surface of the unit. Metal contacts should be lightly snaded with 600 grade emery paper to make sure that they are clean and free of buildup. To select stroke rate mode desired turn on the unit and hold the button down till either 2,1 or 0-STR is displayed. Release the bottom button when the desired setting appears in the bottom left window.
Input is from the seat switch sensor and magnet under the seat.
Mode do a hard reset. Average expected battery life is 400 hours.