How to Fix a Stiff Door Lock
Quick Answer
Lubricate the lock with graphite powder, clean the keyhole, and check the alignment.
How to troubleshoot a Stiff Door Lock
A stiff door lock can be difficult to use. This guide covers fixing a stiff door lock.
Step-by-Step Fix
- Apply graphite powder to the keyhole.
- Insert the key and turn it gently to work in the lubricant.
- Check the door alignment - if misaligned, adjust the strike plate.
- Clean the keyhole with a lock cleaner.
- Test the lock.
Common Error Codes
| Code | Meaning | Resolution |
|---|---|---|
| Lock still stiff | Worn mechanism | Replace the lock. |
| Key won't turn | Misaligned door | Adjust the strike plate. |
Frequently Asked Questions
What lubricant should I use on a door lock?
Graphite powder is recommended.
Can I fix a stiff lock myself?
Yes, with graphite powder.