No, it does not. However, it is important to have realistic zone run time settings entered so that they can be used as a backup program if communication is lost with the SLW weather station. The run times setting entered are also used for the run times for the Run Manual Program function.
Communication with the SLW is shown by an antenna icon on your display. If communication is lost, the icon will disappear after 5 days and you will see a FAULT message on the display. The controller will use last available SLW data to determine run times for 5 days after communication loss. After that, it will continue your irrigation schedule using the run times at Set Zone Run Times on your dial. If communication loss occurs, call your irrigation professional.