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Sorry for the delay in someone getting to your question. Is this a Lippert slide system? Do you have the manual for it or not? Please get back to me and I can assist you further here.
This sounds like it is a Lippert Swintek system. See the attached link to a good video for this. It should allow you to get this room in. If you do need to push it, you may need more than one person. Have the motor disengaged first. Hope this provides some help. Please get back to me if you need more later as all follow ups are included in our fee. https://www.bing.com/videos/search?q=lippert+schwintek+slide+out+problems&view=detail&mid=3945D01532C2BEAC014D3945D01532C2BEAC014D&FORM=VIRE1