As I said- lesson from experience- don't count on emergency roadside or
campside assistance to rescue you if your slide won't move. They might
not be familiar with schwintek operation.
Or your board may be toast or you might have a bad/inoperable motor.
The video below will help if your board is getting an error or high current
from a motor but the board and motors are still able to run.
Here is a Lippert video showing how to override the board and force it
to run the motors when you push the slide extend/retract button.