If your slide is not flush with the floor, it is probably the Lippert sofa slide like in my unit.
Here is the manual: http://www.lci1.com/OwnersManuals/Sl...0Slide-Web.pdf
You get to the manual over-ride by removing the front panel under the sofa. I used a hole saw to drill a hole in my front panel to get to the manual over-ride, but it shouldn't be a big hassle to just remove the panel...probably just 3 screws.
The Lippert sofa slide seems to be a great unit. We have never needed the manual over-ride....knock on wood.
Chap , DW Joy, and Fur Baby Sango
2006 Ford F150 Super Cab 4x4
2008 Surveyor 263