How to do a Master reset of the Fleck 5600SXT control valve

Here's how to perform a master reset of the Fleck 5600SXT control valve:

1. Unplug the power cable
2. Press and hold the 'Next Cycle' button while plugging the power cable back in
3. Continue to hold the 'Next Cycle' button for 3 seconds, then release it
4. The control valve will now be reset to factory default settings