The exterior button was sticking in the open postion and had to be made to go back to normal position, the door lock button worked and so did the interior door opener. I fixed the sticking button as it turned out to be the rubber gasket was not fitted properly, when adjusted exterior door latch perfect, now heres the thing, door lock button wont stay down and te interior lever wont open the door. What should I be looking for as the most likely problem?
