Thanks for the info. Will try the light thing and the engine running in the morning. Batteries were 5 1/2 years old and water was not a problem. I have 4-6 volt batteries and tested them under load this morning and each one tested weak under a load sooooo I bought new ones. Put them in late this afternoon but will test them in the morning to see if the slide comes in.
I think the old ones showed a charge okay but under load didn't have any "bottom" to handle the load. As to whether the slide gets power off coach batteries or cranking batteries, I guess I will know that answer in the morning and will post the answer here. It always seems helpful when I see the solution to the question posted on this site.
Thanks for the responses to my question. Arnold
OK new batteries didn't solve the problem. Running the engine was no help either. Slide acts like it is stuck.. It begins to move and then stops. I may have to find a tech.