Door Lock Not Working? Most Common Problems and How to Fix Them

Posted on July 13th, 2023.

Have you ever encountered the frustration of a door lock not working properly? It can be a major inconvenience and potentially compromise the security of your home or business.

Today, we'll explore the most common problems that can cause a door lock to malfunction and provide you with practical solutions on how to fix them. So, let's get started and learn how to tackle those pesky door lock issues!

Most Common Door Lock Problems and How to Fix Them

1. Key Won't Turn in Lock

One of the most common problems people face with door locks is when the key won't turn smoothly or gets stuck. This can be incredibly frustrating, especially when you're in a hurry or facing unfavorable weather conditions. Several factors can contribute to this issue:

• Misaligned lock
• Worn-out key
• Internal mechanical problems

To fix a key that won't turn in the lock, follow these steps:

• Inspect the key: Examine the key for signs of damage or excessive wear. If the key is worn out, have a new key made by a professional locksmith.
• Lubricate the lock: Apply a small amount of graphite powder or silicone-based lubricant to the lock cylinder. Insert the key and turn it gently to distribute the lubricant and help the key turn smoothly.
• Check for misalignment: If the key still won't turn, the lock cylinder may be misaligned. Insert the key partially and gently wiggle it up and down while attempting to turn it. This may help align the internal components and allow the key to turn.

2. Door Handle Malfunction

Another common problem that people encounter is a faulty or broken door handle. A malfunctioning door handle can make it difficult to open or close the door, impacting both convenience and security. Over time, door handles can wear out due to frequent use, exposure to the elements, or mechanical failures.

To replace a door handle, follow these steps:

• Remove the old door handle: Unscrew the screws on the interior and exterior sides of the door handle. Pull the handle away from the door to expose the latch mechanism.
• Disconnect the latch mechanism: Locate the screws or bolts securing the latch mechanism to the door edge. Remove them to disconnect the old latch mechanism from the door.
• Install the new door handle: Position the new door handle in place, aligning the screw holes. Insert and tighten the screws or bolts to secure the new handle and latch mechanism to the door.

3. Door Won't Latch

The door latch is the mechanism that keeps the door securely closed. When the door is closed, the latch extends into the strike plate, holding the door in place. A properly functioning latch ensures that the door remains closed until intentionally opened.

A door that won't latch properly is another common problem that many people face. When a door fails to latch, it compromises the security and privacy of the space, as the door can easily swing open or be pushed open without the need for a key. There are a few potential causes for this issue, including:

• Misaligned strike plates
• Worn-out door latches,
• Loose door hinges

To fix a door that won't latch, follow these steps:

• Check the strike plate alignment: Inspect the strike plate on the door jamb. If it's misaligned, use a screwdriver to loosen the screws holding the strike plate in place. Adjust the position of the strike plate until the latchbolt aligns with the hole, then tighten the screws.
• Test the door latch: Close the door slowly and observe if the latchbolt extends into the strike plate. If not, the latch may be worn out and in need of replacement. Consult a professional locksmith to replace the latch mechanism.
• Check the hinges: Loose or misaligned door hinges can prevent proper latching. Tighten the screws on the door hinges to ensure they are secure and aligned. If the hinges are damaged, consult a professional locksmith for hinge repair or replacement.

4. Door Lock Sticking

A door lock that sticks or feels stiff when turning the key is not only frustrating but also a sign of potential underlying problems. Several factors can cause a door lock to stick, such as:

• Dirt or debris inside the lock mechanism
• Lack of lubrication
• Worn-out internal components

Ignoring a sticking lock can lead to more serious issues and even lockouts in the future. To fix a sticking door lock, follow these steps:

• Clean the lock: Use compressed air or a can of lock lubricant to remove dirt, dust, or debris from the lock mechanism. Insert the key and turn it several times to distribute the lubricant and loosen any stuck components.
• Apply lubricant: Use a graphite-based or silicone-based lubricant specifically designed for locks. Apply a small amount directly into the lock cylinder. Insert the key and turn it several times to spread the lubricant throughout the mechanism.
• Check for internal problems: If the lock continues to stick, there may be internal problems that require professional attention. Contact a locksmith who specializes in lock repair to diagnose and resolve the issue.

Parts of a Lock

To better understand how to fix door lock problems, it's essential to familiarize yourself with the key components of a lock. Here are the main parts of a typical lock:

Cylinder

The cylinder, also known as the lock core or barrel, is the part that the key goes into. It contains the pins and springs that align and move when the key is inserted.

Keyway

The keyway is the slot or opening in the lock cylinder where the key is inserted. It has a specific shape and pattern that matches the corresponding key.

Latchbolt

The latchbolt is the part of the lock that extends into the strike plate, keeping the door closed when in the locked position.

Strike Plate

The strike plate is a metal plate installed on the door jamb or frame. It has a hole that aligns with the latchbolt when the door is closed, allowing the door to latch securely.

Conclusion

In conclusion, dealing with a door lock not working properly can be a frustrating experience. However, by understanding the common problems and their solutions, you can address these issues effectively. If you're facing any door lock problems mentioned in this article, it's advisable to seek professional assistance.

At Sledge Lock & Key, we specialize in locksmith services, including lock repair, replacement, and rekeying. If you're in the Charlotte, Mecklenburg County, Huntersville, Cabarrus County, Davidson, Rowan County, Mooresville, Iredell County area, don't hesitate to reach out to us at (704) 444-0971 or [email protected]. We're here to help you resolve your door lock issues and ensure the security of your property!