Here is a website having slideout info, maybe you can find some troubleshooting info
Have you tried to manually push as you push the slide switch, are the seals lubricated and not sticking along the trailer wall. Maybe there is another fuse/breaker somewhere.
Also, maybe call a dealer and talk with the service dept or FR may offer some advise.
There will be many others offer input here probably, the people on FRF are very helpful
Hope you can get them working.