[David Bott]

I am guessing you mean your main living room slide. Two things come to mind...

1) Be sure you are extending and retracting with either being plugged into shore power, the gen running, or the engine running. This is to be sure you have full power for the 12v system. If not, the draw may now be too great for the batteries.

2) Have you used the dry lube spray on the rails to help it move easier?

No real adjustments for motor speed.