Ok thanks Aleks. I have taken the panel off previously and operated the linkages manually. All seem to work in operating the push down locking knob and internal/external hand levers but the door remains shut. I’ll try again and also flooding everywhere in lubricant. Strange that it just corrects itself (hopefully not for the last time!) Ta, Graham.Sounds like something sticking with the linkage. Take off the interior panel and give the rods a clean and lube.