I assume you are using the Roland EV-5. That has a 10k pot, which works on this pedal. Make sure the second pot (left side of pedal) is turned full counter clockwise.
Or, maybe you are doing something wrong.
Set the expression to heel.
Quickly turn the desired knob to it's desired low value.
Quickly set the expression to toe
Quickly set the desired parameter to it's high value.
Quickly save things.
You have to move fast enough so the light does not stop blinking in the process.
