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2–Pump 12-Station Controllers Chapter 8: Service Only Information 69
ROM CHECKSUM: 0x0000
PRESS YES TO RESUME
Restoring the Controller to Factory Defaults
Although rare, you may experience a condition when you need to perform a total reset of the
controller. To do so, perform the following procedure.
Note: All parameters you set are lost when doing this procedure,
including passwords and OEM Service settings.
Follow these steps to restore the controller to factory defaults.
1. Remove power from the controller.
2. Press and hold the CLEAR key.
3. Re-apply power while holding down the CLEAR key.
During initialization, the screen displays a message indicating that factory default
settings are set.
Verifying Software Checksums
Follow these steps to verify software checksum values.
1. Remove power from the controller.
2. Press and hold the SET key.
3. Re-apply power while holding down the SET key.
During initialization, the screen displays a message while the controller calculates the
software check sum. This number is in hexadecimal format (Base 16) and displays in
numbers and letters.
Example: 0x1FC9 is a valid checksum format.