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On my Smartcode 909/910, the lock beeps, the keypad flashes red, and the door cannot lock.

The door handing process was not executed during installation. Here are the instructions for the door handing:
 
  1. Remove battery cover
  2. Remove battery pack.
  3. Make sure the turnpiece is in the vertical position
  4. Press and HOLD the Lock button while installing battery pack.
    Hold button until the latch bolt starts moving on its own.
  5. Did the latch bolt retract and extend on its own when the battery pack was installed?
    YES- Door handing process was successful! Proceed to next step after latch bolt stops moving.
    NO- Remove battery pack, wait 15 seconds, then attempt the process again.
    • The hole in the door is misaligned. Disassemble the lock, and reinstall it without the adapter ring on the exterior side of the door
    • The wrong deadbolt latch is installed. SmartCode deadbolts require a tapered latch bolt for ease of operation. If the latch being used is from an older lock, it will likely not have a tapered latch bolt. Remove the lock from the door, including the old latch. Replace with the new latch and reinstall the lock.
    • The deadbolt latch and strike are misaligned, causing the latch to bind. Adjust the tab of the lower strike (for your knob or lever) to help align the upper latch and strike so that the latch bolt enters the strike when the door is locked.
    • The lower latch and lower strike (for your knob or lever) are misaligned, putting too much load on the deadbolt latch. As a test, rotate the turnpiece on the deadbolt so the latch is retracted (unlocked), and close the door. If you have to push, pull or lift the door to get it to close, adjust the position of the lower strike.
    • The hole in the door frame for the latch bolt is not drilled deep enough. Make sure the hole in the door frame is drilled at least 1” (25 mm) deep.
    • The mounting plate is placing tension on the torque blade. Attempt to lock and unlock the door with the key. If it is unable to rotate, remove the interior assembly from the mounting plate. Test the key again. If it is still unable to rotate, loosen the screws on the mounting plate and reposition the plate so there is no tension on the cylinder torque blade. Make sure the latch bolt can operate smoothly with the key and reinstall the interior assembly.
    • The clutch is disengaged. Remove the interior assembly from the door. Verify that the lock can be operated smoothly with the key while the interior is removed. Attempt to rotate the turnpiece on the interior assembly. If it does not rotate smoothly, the clutch has become disengaged. Simply rotate the turnpiece 180° clockwise (you will need to use force when rotating the turnpiece, and you will hear it click). This will re-engage the clutch. Align the turnpiece with the torque blade and reinstall the interior assembly on the door.
    • The latch is installed upside down. A quick way to tell that the latch is upside down is to look at the face of the cylinder. If it is upside down, the latch is installed upside down. Remove the entire lock assembly from the door, including the latch. Reinstall the latch, making sure the word “UP” faces upward. Reinstall the lock. If the turnpiece does not align with the torque blade, rotate the turnpiece 180° clockwise (you will need to use force when rotating the turnpiece, and you will hear it click). Perform the door handing process once the lock is fully installed.

     

    For visuals click here.

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