Thank you for considering my issue. Background - water seeping from bottom of sealed unit, door drains into the frame to the exterior. Suspect blockage somewhere but I can’t get the left hand door open(the one that’s always closed, hardly used). Lock operates as expected but handle will not go down. Started removing the metal ‘safeware’ strip(to try and gain access to the lock retaining screw) but the screw circled in yellow will not budge. Should it? My thinking is that if I gain access and remove the lock, the mechanism may operate. Have used easing oil to try and free everything. Any help very much appreciated. Arthur.