Slide out issues Dutchmen 27'

[Jackson6976]

Slide out is not working properly. Hydraulic pump functions perfectly, extended but lacks about 7" to complete, now it will not go back or forward on front end. Cannot find any areas here jamming has occurred the far toothed runner extend to the point it is pushing the siding outward , front one not moving at all. Any ideas, looked everywhere for a suggestion? Thanks for any help in advance!