Why is My Door Locking by Itself?

Why is my bedroom door locking by itself?

The reason your bedroom door is locking by itself is because the door lock is dry or dirty, a misaligned lock, and a frozen door mechanism. Another reason your bedroom door locks by itself is a broken key in the lock.


door locking itself


Dirty or dry door lock

The frequent turning of the doorknob could eventually render the door locks less effective in protecting the bedroom. This widespread problem with door locks occurs most frequently on interior doors that have keyed doorknobs in a lever style. Children who hang on door knobs or other family members who twist the handle too far on a regular basis could make the problem much worse.

A door lock can get unfastened if it has a sliding locking mechanism. This arises when the mechanism becomes dislodged from its proper position, which prevents the lock’s internal components from attaching in the appropriate manner. This way, your bedroom door has the tendency to lock by itself.


Frozen door mechanism

You probably don’t know the amount of pressure put on the lock on the door to your home. The majority of the time, door locks are continually subjected to the elements and various weather conditions that can be harsh.

In addition, most people carry their bedroom key around on a keyring in their pockets, bags, or wallets. Over time, your keys may transmit extra junk to the locking mechanism they are attached to, which may cause them to malfunction. This collection of trash and grime within the lock may contain moisture that can freeze during the months of extremely cold winter. This can cause your lock to lock itself and become inoperable.


Misaligned Locks

The deadbolt of a door lock performs its function most effectively when properly inserted into the strike plate that is located along the door jam. If the alignment of these elements is even slightly incorrect, the lock will likely struggle, and there is a chance that it may lock itself. When people grab and pull on the door handles or forcefully swing the doors open and closed, they frequently push the hinges out of alignment, which causes the door to be crooked.

This is one of the most typical ways locks are knocked out of alignment. However, not all doors have symmetrical openings. When the bedroom door lock is out of alignment, opening and closing the door require additional effort in pushing, pulling, and lifting. This additional strain may result in broken keys and components of the inner lock becoming distorted.


Broken key in the lock

It’s aggravating enough to misplace a key; breaking one off in the lock is another level of aggravation. Not only will it make you terrified, but if you have to replace the lock entirely, it might also be a very expensive mistake. If you choose to force your way in, even though doing so may be justifiable in certain circumstances, you should be aware that doing so may result in a high cost from a locksmith.


How to fix a bedroom door that is locking by itself?

You can fix your bedroom door by cleaning the door lock, removing a broken key from the lock, and warming your door lock. Another way to fix your bedroom door locking by itself is by lining up the lock.

Cleaning the door lock

Dryness or a buildup of dirt may cause your door lock or deadbolt to become stuck. Here are steps to follow in cleaning it.

  1. For a quick and easy solution, try spraying the keyhole with a dry lubricant spray or dusting the keyhole with powdered graphite to make the lock move again.
  2. When it comes to dissolving grime and debris, outside doors, try having a commercial lock cleaner sprayed into the keyhole.
  3. You can also use compressed air to loosen the grime stuck in your lock.


Removing broken key from the lock

If you can remove a broken key from the lock, your bedroom door will stop locking by itself. Below are steps to remove the broken key from the lock.

  1. If your key snaps off inside the lock, you can try to carefully remove it by grasping the exposed end of the key using needle-nose pliers and pulling it out.
  2. If the key doesn’t protrude far enough to hold, you can hook it with a length of the coping saw blade that has been cut off and then pull it out of the lock with care.
  3. If the key continues to be jammed, remove the lock cylinder and then use a stiff wire to push the key out by putting it into the slot at the back of the lock.
  4. You might also take the cylinder to a lock shop to have the key removed from it.


Warming your door

Your door locks frozen will make it lock itself most times. To solve this problem, follow these steps below.

  1. If you need your lock to be warmed up quickly, you can try using a hairdryer, heating your key with the heater in your car, or heating it in a pot of hot water.
  2. In addition to being effective, commercial aerosol lock deicers are readily available at most hardware stores.


Lining up the lock

Your misaligned lock need to be fixed to stop your bedroom door locking itself. Locks that aren’t aligned properly are more serious problems than mere annoyances. Additionally, it threatens your safety because it makes it less difficult for an intruder to get through the door. You can follow these steps to line up your lock.

  1. Unscrew the lock’s mechanism until it is free enough to move around.
  2. It needs to be repositioned so that the strike plate and the deadbolt are aligned, and then the screws need to be tightened again.
  3. Before you decide on the perfect alignment, you should probably perform a few tests runs.
  4. There are situations when making modifications to the lock itself isn’t enough. If this is the case, you will need to slacken the door’s hinges and readjust the door, so it is flush with the door jam.

Note: If these troubleshooting steps don’t resolve the problem, you will need to hire a locksmith so that the mechanism may be repaired or possibly replaced. You must never ignore a lock that isn’t properly aligned.


Why is my bathroom door locking by itself?

The reason your bathroom door looks by itself is that the doorknob is loose, the key is broken off in the lock, or your lock is jammed. Another reason your bathroom door looks by itself is because of stripping weather.

  • The doorknob is loose.
  • The key is broken off in the lock
  • Jammed lock
  • Weatherstripping


Loose doorknob

The bathroom door has many moving parts in a door lock. These components must be in place for the lock to function properly. Once the doorknob or other parts wear out, the lock will no longer function properly.

If your bathroom doorknob is loose, your door will continue to lock by itself. This happens when a screw in the lock is loosened or damaged. Another cause of a loose doorknob is that the parts inside don’t fit together as they should, which can cause the handle or knob to become unattached from the door.

Whenever you experience this, you need to fix your doorknob immediately so you won’t feel frustrated after bathing, and you are stuck in the bathroom because the door has locked itself.


Broken key

From personal experience, I can state that breaking a key in a lock is one of the most frustrating issues that may arise with a bathroom door lock. Broken key occurs due to damage from wear and tear over time. If a key is broken off with enough force, it could damage your door lock.

In this case, you might follow some DIY steps, but if you can’t get through, you should call in an expert.


Door jamming

Building up dirt in the internal mechanisms is a common cause of a jammed bathroom door lock. A jammed bathroom door lock can also be caused by a broken latch or lock bolt and will need to be repaired or replaced. If the door lock’s bolt or latch can’t be repaired, replacing it is the best option.


Weather stripping

One of the most common causes of a bathroom door locking by itself is weather stripping. As a result, the lock may become misaligned and stop functioning correctly. Weather stripping wears away the paint on the outside of a building. The decay that happens makes the door lock latch break from the inside. If this is the case, you should replace the damaged weather stripping.


How to fix a bathroom door that is locking by itself?

You can fix a bathroom door that is locking by itself by lubricating the lock, removing the broken key, and tightening the lock. Another method to fix a bathroom door that is locking by itself is by readjusting the strike plate.


Lubricating the lock

Cleaning and lubricating your bathroom door lock on a regular basis will extend its life and keep it functioning smoothly. Here is how you can lubricate your lock;

  1. Blow the dust out of the keyhole
  2. Spray the lock cylinder and opening.
  3. Lube the lock with a dry lubricant.
  4. Use WD-40 as a short-term solution.


  1. Remove the screws securing the lock on the door.
  2. Remove the two screws under the door knob and the screws on the side of the door that hold the faceplate in place.
  3. Pull the doorknob and faceplate out of the door.
  4. Put all the parts on paper or cardboard so you don’t lose anything.
  5. Clean every part of the lock with WD-40.
  6. Apply graphite lubricant to all parts of the deadbolt.
  7. Put the door’s latch-bolt and faceplate back on the door’s side.
  8. Put the door knob on the outside.
  9. Then, put the knob on the inside of the door.
  10. Put the front plate on.
  11. Tighten all screws.
  12. Turn the doorknob to make sure everything is moving smoothly.


Removing the broken key

If your key breaks off in the lock, you can try gently pulling it out by grasping the exposed end with needle-nose pliers. Here is how to fix it;

  1. Use a spray lubricant to clean the lock.
  2. Align the cylinder.
  3. Slide the part of the key that looks like a handle into the lock until you reach the broken part. This is the best place to put your tool for extracting.
  4. Select your extractor tool.
  5. Use the small hook tool to start.
  6. Slide the extractor tool or tools into the lock.
  7. The hook should face up so that it is easy to hook the key’s teeth.
  8. Turn the tool to remove the screw and pull.
  9. Keep trying until the hook on the tool catches one of the teeth, and you can pull the piece of key out.


Tightening the lock

If your bathroom door has handled locks, they may loosen as you frequently use them, which can cause your door to loosen and lock by itself. Here is how to tighten it;

  1. Line up the door handles on both sides of the door
  2. Tape them in place or have someone hold them while you work.
  3. Once the door handles are in the right place, tighten the screws until they are flush with the doorknob.
  4. If any of the screws are broken or stripped, replace them.


Readjusting the strike plate

Incorrectly arranged lock and strike plate can cause the latch to not click flush with the door. And when this happens, your bathroom door will keep locking by itself. Here is how to fix it;

  1. Remove the strike plate with a screw.
  2. Enlarge the opening by filling in the inside edges of the opening.
  3. Unscrew the strike plate and reposition it.
  4. Then, check to see if the door lock latch works right.


How to prevent a self-locking door from locking when it closes?

You can prevent a self-locking door from locking itself by using a smart lock or keyless lock, readjusting the doorknob lock mechanism, and installing the lock properly.


Using a Smartlock/Keyless locks

Changing your locks to smart locks or keyless locks is the easiest and most evident preventative measure you can take. The keypad combination lock is still the most common type, but the fingerprint lock is quickly taking over. Make sure that whichever lock you choose is of good quality. Now that that’s been taken care of, you won’t ever have to worry about your self-locking. Here are steps to follow to use a smart lock.

  1. Do some study on which lock best suits your demands and ensure it is high-quality and safe.
  2. Be mindful of the current state of the battery charge in your lock if you decide to update to a smart lock since this is an essential point to keep in mind.
  3. Get a lock with an indicator that beeps or blinks when the battery is low, and make a mental note to replace the battery as soon as it begins to run low.


Readjusting door knob

Readjusting your door knob will stop your self-locking door from locking by itself. Go through these steps to adjust your knob.

  1. First, remove the screws so the doorknob can separate into three components: the inside knob, the outer knob, and the latch mechanism located within the door.
  2. When removing the knobs, pay close attention to how they fit together; this is because you will need to put everything back together later.
  3. Change the mechanism of the lock.
  4. Use a rotary tool or a hacksaw to remove the end of the flat rod sticking out of the housing.
  5. Cut the rod so that it is almost even with the end of the shaft, but take care not to cut through the shaft itself. By cutting the rod, you will be able to sever the spinning tab’s connection to the lock.
  6. Put the doorknob back together in a cautious manner. In most cases, this requires first reattaching the internal doorknob, followed by the attachment of the external doorknob by sliding it through the appropriate holes in the latch mechanism. First, you need to replace the two screws, and then you need to check to see if both handles still spin and can engage the latch.


Installing the lock properly

If your self-locking door keeps locking when it closes, it is because the door lock installation was done incorrectly. To prevent this, you need to ensure that your lock is installed properly. Here is how to fix it;

  1. Measure the size of the door lock.
  2. Find a new lock that fits your door.
  3. Put the new bolt in place and fasten it with provided screws.
  4. Connect the inside and outside plates together.
  5. Attach decorative base plate.