With the dial in the RUN position, press the plus (+), minus (-), left (<) arrow and right (>) arrow buttons simultaneously. In a few seconds the LCD will display all segments.
Press the plus (+) button once to begin the Quick Check procedure. Within seconds, the system searches all stations for detecting any circuit problems. When a field wiring short is detected, an ERR symbol preceded by the station number will momentarily flash on the display. After the Quick Check completes running the circuit diagnostic procedure, the controller returns to the automatic watering mode.
NOTE: The Quick Check procedure does not detect open circuits or cut wires.