Slideout

Hi
Need help
Desperate
Slideout will not retract with power or manually
Able to extend slideout all the way with power but will only retract halfway Then it will not go any further
I have a Powergear 2 rail electric slideout
Cant see any obstructions
Checked Powergear manuals & made a height adjustment but this only seemsed to make matters worse
All I'm now concerned with is getting slideout tottally retracted
All gears look good
Is ther anything I can do to manually retract slideout?
Disconnected power to motor & released brake on motor but unable to
manually move slideout
Just cant figure it out
Talked with Powergear Rep but no help
I am able to move slideout in & out under power but only half way in
Dont understand
Any help will be appreciated
Thanks
Fleetwood 2006 Jamboree 23e