The lock says yes, the handle says no
If the lock signalled a correct code and the handle still will not turn, the lock has done its job — something is holding the bolts. Nine times out of ten it is the contents of your own safe.
- Push the door inward while turning the handle Overpacking is the single most common cause: contents lean on the inside of the door and load the bolts, so they cannot slide. A firm push inward while turning the handle unloads them.
- Try lifting the door slightly by the handle Heavy doors settle on their hinges over years. A few millimetres of lift takes the weight off the bolt channels. Lift, don't wrench.
- Rock the handle gently, both directions Not force — movement. A bolt that has been pressed sideways will often release with a small reversal and then turn normally.
- If the safe is bolted down, check the floor A safe anchored to a floor that has settled, or shimmed unevenly, twists the body just enough to bind the boltwork. This is why anchoring kits include shims and why installers check the door swing afterwards.
- Repeat the code once more after unloading Some locks re-lock automatically after a few seconds. Unload the door first, then enter the code, then turn the handle — in that order, within the lock's open window.
A cheater bar on the handle breaks the linkage between handle and bolts. Then the lock is fine, the bolts are still out, and the only way in is drilling — the same outcome as a fired relocker, at the same price. If gentle attempts fail twice, stop.
Less common, still worth knowing
Something fell behind the door
A document folder, a box, a rifle that slipped — anything that has moved into the path of the door will hold it shut. Tilting the safe very slightly backwards (two people, never alone) sometimes moves the object off the door.
The safe was moved recently
Transport shifts contents and can twist an unsupported body. Check that all four feet actually touch the floor before blaming the lock.
Handle turns freely but nothing retracts
Broken linkage or a sheared handle spindle. Technician — and worth telling them on the phone, because it changes which tools they bring.
Fire-lining swelled after a flood or a fire
Composite fire insulation absorbs water and expands. After any water damage, a door that binds is a job for a technician, not for leverage.