When a key does not fit in the interlocks and cannot be inserted, the following procedure must be followed.
- Check if key is being inserted in the right orientation (not upside down), see key engraving on the side of the lock body for correct positioning
- Check if you have the correct key, by comparing the engraved key code with the code of the lock key position
- Check if anything is blocking the key entrance or if key is damaged
- If the key still does not fit, please contact Netherlocks or your local interlock partner