What To Do When Your Key Won’t Go In Lock?

Key Won't Go In Lock

Although there are now many intelligent electronic locks on the market, many homes still use traditional locks. This type often encounters many situations, such as a broken lock or critical jam.

So, what do we need to do when your key won’t go in lock?  You need to follow the steps below in this situation:

  • Clean the inside
  • Lubricate locks
  • Check or replace if the lock is old.

The article will provide detailed instructions for each step to simplify your implementation. Let’s find out what you can do in the article below!

The Reason The Key Does Not Fit In The Lock

Before learning about the solution to the lock, let’s take a look at the reasons why the key cannot be in the lock.

Once you know the reason, you will learn how to prevent these conditions before they happen, and you have to find a way to fix them.

There is a foreign object inside the lock.

Key Won't Go In Lock

Key Does Not Fit In The Lock

Debris and dirt are the leading causes of locked locks. Small debris, airborne dirt, or fibers can get in when you put the key inside. Over time, tiny dust particles will accumulate and fill up, leaving you with no room to put the one in.

There are many reasons why your lock becomes full: insects get in on their own, someone intentionally damaged the lock. To see if something is stuck inside, you can use a flashlight to see clearly.

This dusty condition you can recognize if you pay attention during use. If you feel the key in or out a little slowly, it is most likely due to dirt. If detected early, you can easily clean and avoid this reason.

Cause from the key

It may be silly, but many people often use the wrong key. You can fix this by trying the remaining keys or marking them with a special symbol.

Sometimes the old, worn, or rusted key will also have a lot of difficulty opening.

Make sure your lock is always in top condition by cleaning, oiling, or making a new lock. If the safety is good, you still can’t use it, and it may be poor artistry. Incorrectly cut eyes will not be able to unlock successfully.

Locks dry hard

After a long time of use, yours may wear out due to many factors and rust inside the degrade. This condition happens so slowly that it is tough to notice, and you will only know when it is broken.

Another common occurrence when the weather turns colder is the freezing of locks. Colder weather causes the latches and springs, the structure inside, to harden. Even if you successfully put it in, it will be challenging to turn to open it.

What To Do When Your Key Won’t Go In Lock

Key Won't Go In Lock

How to fix

Now is the time to find ways to fix the above errors. The following methods are pretty simple, and you can do it yourself at home.

Clean the inside

If you observe foreign objects inside, you need to remove them in the first case.

It seems that you will not be able to apply external forces such as shaking or banging to make those objects fall out because the lock is so tiny. So you save your energy to find more valuable items.

You can use micro-tweezers or a stick to insert and pull out the stuff stuck inside. You can use a magnet if metal things are inside, like pins or guitar strings.

In case the inside of yours is dust or fabric, you cannot apply the above method. You need to use an inflatable or compressed air to blow inside. Dust and fibers are light to fly up, and you need to slope them outside.

Lubricate locks

Long-term use causes the motors inside the lock to dry up and stop working. So it will help if you lubricate it with specialized tools for the safety to work again.

There are many types of lubricants on the market today, but the easiest and simplest to use are spray lubricants.

This type consists of 1 solution container and one spray nozzle with a small straw to look inside. To use the spray, follow these steps:

Step 1: Installation

There are many types of lubricants, some of which, when left to stand, separate into layers, and you need to shake them well to mix them well. Then unseal the spray stopper and install the hose to the correct outlet of the product.

Step 2: Use

Spray the solution on the inside. You can also shake it so that the key can get all over the place and contact the motor inside.

Step 3: Clean

Maybe you will spray too much in the manipulation process and spill out. In addition, you can also spread on the key to make it smoother. However, you still need to clean carefully to avoid getting on your skin or clothes during use.

Check or replace if the lock is old.

Key Won't Go In Lock

Replace the old one

If you have applied the above methods and still do not work, it may be time to replace a new set of locks. Situations where you know you need a new lock:

  • The lock body is bent or deformed from the original.
  • Dull key
  • Worn head, unusual shape

When faced with these situations, some people often try to correct themselves, such as bending back or polishing the surface.

However, the key with these marks is a sign of quality deterioration from the inside if you continue to use them because they can break at any time.

Now, watch this video for more tips to use:

When To Call A Locksmith?

Key Won't Go In Lock


Calling a locksmith is not necessarily the best method because they need travel time, and you will also lose a sizable amount of money.

However, in severe cases where you do not have enough skills and tools, calling a maintenance specialist is the only option.

Sometimes the key is too old, or you use too much force, which can cause the key to break while turning. Half of one will be inside, and even if you have another key, you will not be able to get in. So you will need the help of professionals with specialized tools to remove it.

Some other cases come from failures inside the drive that you can’t see from the outside. Maybe something is broken or worn, like a pin or a chamber. So you will need locksmiths for them to check and fix and replace if necessary.


The above methods you need to apply periodically every few months to ensure a smooth use process. You can also prepare a few extra keys so that you will have a new key to replace if you lose, bend, or break due to physical impact.

If you’re stuck with a key and lock, don’t try to force it like turning or pulling out.

These efforts can worsen the situation and cost you more to replace the entire with a new one. The last resort is to call a locksmith and get the number of the nearest repair shop right away in case of an emergency.

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