I experienced similar symptoms. As I was extending the slide it slowed down so much I was woried about a fuse/circut breaker or worse smoke from the control panel,so I quickley shut it off called rexhal and they said the engine should always be running to assure overloads like that dont happen.
It had always worked fine with the engine off,but all it takes is once.
Originally Posted by lesbal
I have a 99 Southwind Storm 34 with a large front slide and a small bedroom slide. My problem is the large slide. It goes out very slowly and I have to run the engine to give it enough voltage to push it out the rest of the way. I also noticed that it would come in without having to start up the engine. Of course I checked batteries and connections and thought that I was looking at a replacement motor and or gear box and have been looking everywhere for these parts. Then I remembered that when I extend the rear slide there is a warning beeper that goes off, and when I extend the front slide I hear nothing. Upon investigation I found the warning beeper for the front slide and it was not working! Disconnected the warning beeper box and WOLA the slide now goes out under coach battery power without the aid of starting the engine. I think I have found the problem, I sure hope so.