Multipoint Lock Replacement Parts - Repairing Faulty Interior and Exterior Door Locks

Understanding Multipoint Locks and When to Replace Parts

Having a properly functioning multipoint lock on your home's doors provides important security and convenience. However, after years of use, the various moving parts inside these locks can wear out or break. When one component fails, it can prevent the entire lock from working properly. Fortunately, many multipoint lock issues can be resolved by replacing individual parts.

What Is a Multipoint Lock?

A multipoint lock, sometimes called a multi-point locking system, is a type of lock that has multiple locking points engaged by a single handle. When you turn the inside handle or insert the key on the outside, it simultaneously throws several bolts into the door frame to securely lock the door.

Compared to a standard deadbolt lock with only one locking point, a multipoint lock provides enhanced security. The multiple bolts spread locking strength across the entire door to resist forced entry. These locks are common on exterior doors since their robust design thwarts break-in attempts.

Common Multipoint Lock Parts That Fail

There are several multipoint lock components that receive a lot of wear and may need replacement over time, including:

• Cylinder housing - Holds the lock cylinder where you insert the key
• Lock cylinders - Integrate with the key to extend or retract the locking bolts
• Connectors - Linkages between the cylinder tailpiece and locking mechanisms
• Locking bolts - Move in and out to lock/unlock the door
• Striker plates - Receivers on the door frame for the locking bolts

Signs You Need Multipoint Lock Part Replacement

How can you tell if a worn or damaged multipoint lock component needs replacement? Here are some common signs of issues:

• Lock sticking when turning the key or interior handle
• Loose cylinder housing or key cylinder
• Lock failing to engage several or all locking points
• Locking bolts getting stuck partially extended
• Doors not aligning properly when closed

Even if the lock seems to be working, weakened parts can fail unexpectedly. It's best to replace any visibly damaged or excessively worn components.

Replacing Specific Multipoint Lock Parts

When one or more multipoint lock components need replacement, you can usually repair the lock without having to replace the entire locking mechanism. Here is an overview of replacing common multipoint lock parts:

Replacing the Cylinder and Housing

The cylinder housing holds the rotating plug cylinder that interfaces with your key. These pieces are modular, allowing straightforward cylinder and housing replacement when damaged or to rekey the lock. Steps include:

1. Remove the multipoint lock from the door
2. Take out the retaining screws around the cylinder housing
3. Slide out the old cylinder and housing
4. Insert the replacement cylinder into the new housing
5. Reinstall the cylinder housing and retain with screws
6. Remount the multipoint lock mechanism
7. Check operation with the new key

Swapping Out Broken Connectors

The connectors transfer motion from the cylinder tailpiece to the locking bolts. If they strip, crack, or otherwise fail, the lock won't engage properly. Replacing connectors involves:

1. Taking off the door panels to access lock linkages
2. Removing the multipoint lock mechanism
3. Detaching the faulty connectors from the tailpiece and lock drive arms
4. Installing new replacement connectors in their place
5. Testing the freshly rebuilt lock for smooth bolt throwing

Fixing Sticking Locking Bolts

Sticking or hard-to-move locking bolts often stem from too much friction in the bolt channels. This issue can often be fixed by replacing the bolts. Steps include:

1. Taking out the bad locking bolts from the door edge
2. Cleaning out any debris inside the vacant bolt channels
3. Inserting the replacement locking bolt mechanisms
4. Testing operation to confirm smooth bolt extension/retraction

When to Call a Locksmith

In some cases of multipoint lock failure, solving the issue involves more specialized disassembly, troubleshooting, and rebuilding skill. If any of these scenarios describe your situation, it likely makes sense to call a professional locksmith:

• Unsure why the multipoint lock stopped working properly
• Need to replace multiple worn/damaged internal lock parts
• Lock requires realignment due to door sag or misalignment
• Don't have the special tools for this hardware
• Concerned about accidentally damaging components

With specialized tools and experience servicing all kinds of door hardware, a locksmith can safely diagnose your multipoint lock, replace any bad parts, and restore smooth functionality. This avoids the headaches and extra costs from botched DIY repairs.

Finding a Reliable Locksmith

Ask neighbors, friends, or search online reviews to find a well-qualified local locksmith. Reputable locksmiths have experience servicing multipoint locks and carry replacement parts on their service vehicles. They should be able to arrive promptly to restore access if you get locked out. Prioritize licensed and insured locksmiths for assured quality work.

FAQs

What are the most common multipoint lock parts to fail?

The cylinder housing, lock cylinders, connectors between the cylinder and locking mechanisms, the locking bolts themselves, and striker plates see the most wear and are most likely to need replacement over time.

How can I tell if my multipoint lock needs a part replaced?

Common signs include the lock sticking, the cylinder or housing being loose, failure to engage all locking points, bolts getting stuck halfway, and doors not aligning properly closed. Visible damage or excessive wear also indicates replacement is needed.

Can I change multipoint lock parts myself?

In some cases, yes - components like the cylinder, housing, connectors, and locking bolts can be swapped out with some mechanical skill. But issues involving realignment or unclear causes are best left to a professional locksmith.

Where can I find replacement multipoint lock parts?

A local locksmith is the best source for compatible replacement multipoint lock components. They likely have common parts in stock on their service vehicles for efficient repairs.