deadbolt wont retract

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After rotating  the key to unlock the lock, you must return the key to its normal position to remove it. 
The L9466 Store/Utility Room lock can provide this functionality. Operation: Latchbolt retracted by knob/lever either side. Deadbolt thrown or retracted by key from either side. When the deadbolt ...
After installing a classroom deadbolt, there is potential for the thumbturn to project the bolt only, get stuck in one position, or move both directions but not move the bolt.  These are caused fro...
If your Von Duprin EL (solenoid) device pulls and releases quickly instead of holding the latch retracted, please check all of the items below.In most cases, one or more of these solutions will r...
Bad dogging hook on the dogging assembly could cause the 33A/35A and 98/99 exit device latch bolt not to retract completely.