Rose,
I just solved this problem. There is a definite design flaw with the lock.
The bottom door lock, the one with the red cover would lock easily, but I couldn't unlock it from the inside manually. Yet with the electric door opener, and the key from the outside, it would work fine.
I thought at first it was just some metal binding, so I tried to spray some lube but it didn't work.
So I took the whole door panel off and found the small shaft link that connects the lock button to the electric solenoid would flex down and bind rather than slide back and forth like it was supposed to.
The fix is easy. I drilled a small hole just under the shaft link, screwed in a screw and on the other side of the hole, the screw screwed into a cut down plastic wall insert.
The screw/plastic insert provides a little support to the shaft link and prevents it from sliding down to where it binds. The lock button now sides open and closed with ease.
Best Regards!
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Paul D
2007 Winnebago Journey 39K Freightliner Chassis, Cat C7
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