That difference is useful information
For Kings Heath, Yardley Wood, Druids Heath and Maypole, tell us if the key or handle works normally while the door is open but struggles once closed. Only report what you can observe safely; do not repeatedly test a jammed entrance. Alignment and keeps may need attention alongside the lock, and the inspection determines the appropriate repair.
About this B14 enquiry area
For Kings Heath, Yardley Wood, Druids Heath and Maypole, let us know if the problem changes when the door is open. A door that locks open but resists when shut may need alignment assessment.