One. What are the possible reasons for being unable to remove the key?
One reason is that the key does not align with the lock cylinder when inserted. Another reason is that the lock cylinder of some handle locks has already become misaligned, causing you to see that a portion of the cylinder protrudes outward. Inserting the key at this point will then result in the key being unable to be removed.
Two. What to do if the key cannot be removed?
1. If you encounter this situation, first, do not forcefully try to remove the key. The lock mechanism may be stuck. Instead, insert a small amount of pencil lead into the lock cylinder. The pencil lead acts as a lubricant. After a while, try removing the key again.
2. Sometimes, the issue arises from incorrect key insertion. If the key can still be rotated, turn it in the same direction and then quickly return it, followed by applying a slight force to complete the rotation. This should allow you to remove the key.
3. Sometimes, you may encounter issues with deadbolts that won't open. This can happen if the locking mechanism is not properly aligned. To resolve this, you need to re-seat the locking mechanism and then apply pressure while turning the key with your other hand.
4. Some locks may rust over time due to prolonged use. Applying lubricating oil to the lock cylinder is a viable option, as is using household cooking oil. After applying the oil, try turning and manipulating the key to attempt to extract it.
5. If the issue persists, you will need to hire a professional locksmith to come to your location. The typical on-site service fee ranges from 50 to 100 yuan. Additional charges may apply if you require a replacement lock cylinder.