[Wesleyp777]

Thanks for your answers guys, I have tried with the engine on and certainly plenty of air pressure, I now feel this could be electrical as the 3 other slides move/deflate no problem.

Could this be related to a flat battery? I had the vehicle out last weekend on hire and someone left the lights on not hooked up and by the time I arrived to collect it was dead! Managed to get the slide in but it did hesitate.

There is a whole load of fuses in the front of my coach but can’t see any fuse related to slides?