Changing The Batteries; Maintenance, Troubleshooting And Repairs - DIG 400A Series Instruction Manual

16. CHANGING THE BATTERIES

The 400A Series controller's batteries can last up to 3 years when using name-
brand AA alkaline batteries. Actual battery life will depend on the sensitivity of the
installed batteries to temperature ranges experienced by the controller as well as
the number of valve operations programmed per day. To ensure proper operation,
it is recommended that the 400A Series controller be checked regularly and the
batteries replaced once the low battery indication starts flashing.
The 400A Series controller is designed to maintain the current time settings for up
to 60 seconds with the batteries removed.
To change the batteries, see section 5.
Note: If the batteries are dead or drained, manual operation can also be
accomplished by turning the solenoid counterclockwise, or by turning the external
bleed screw counterclockwise. This will cause the valve to open. Both must be
turned clockwise to close the

17. MAINTENANCE, TROUBLESHOOTING AND REPAIRS

To restore the controller to the default settings
1. Press the
appears on the bottom left of the screen.
2. Press and hold down the
3. The screen returns to the home screen (clock) and all the default settings are
restored. The current time and date is retained.
PROBLEM: Controller fails to open automatically or manually
CAUSE: No water pressure
SOLUTION: Open main water supply valve
CAUSE: Flow control knob is turned down
SOLUTION: Turn flow control knob clockwise to open
PROBLEM: Valve/actuator functions via the manual mode but
not automatically
CAUSE: Controller is set to OFF mode
valve.:
button until the START EVERY is displayed and the
for three seconds.
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