The key has started to stick a little - is it necessary to immediately change the cylinder?

The client's name and specific details have been changed to maintain confidentiality.

Let's call the client Alexander. Over the last few weeks he has noticed that the key sometimes enters the cylinder less smoothly. The lock continued to work.

There was no serious jamming. But after several articles on the Internet, Alexander decided:

“The cylinder is probably already dying and needs to be replaced urgently.”

Not necessarily. The source material separates minor faults, in which repair is still possible, and more serious wear, in which replacement becomes more rational. Possible causes of problems include contamination, wear, key damage, moisture and mechanical stress.

When the problem may be small

For example, if:

• the symptom appeared recently;
• the cylinder does not jam completely;
• the key is not damaged;
• no pronounced play;
• the mechanism has not been seriously affected.

Then diagnostics first makes sense.

Why you can’t make a diagnosis based on just one symptom

Phrase: “the key goes hard” may refer to more than just a cylinder. The reason may be:

• key status;
• door position;
• load on the lock;
• pollution.

Therefore, automatic replacement is sometimes unnecessary.

And when it’s no longer worth delaying

If:

• the problem is rapidly intensifying;
• the key regularly gets stuck;
• the cylinder is noticeably loose;
• there were external damages;
• the mechanism has already been repaired several times.

Then the question of replacement becomes much more justified.