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How to Do Your Own Lock Repair You can fix your locks yourself or employ a professional locksmith if they begin to fail. However, the process of fixing locks can be tricky and the wrong approach could cause further damage. You must first determine if the issue is due to dust or dirt. This is usually solved by applying a graphite spray or silicone-based lubricant. 1. Door Handle or Knob Lock Over time doors knobs and handles may become loose. This can result in the knob or handle becoming jiggly that is difficult to open. Knobs that are loose in the door are not only annoying but they can also compromise your building's security, which is why it's essential to identify and resolve the issue as quickly as possible. A doorknob that is loose can be easy to repair. Depending on the lock you have installed on your door, there are several solutions to fix it. Certain lock systems come with easily accessible mounting screws, while others use backplates that hide the screws. This method is more complex if your door uses a backplate that hides the screws. The majority of interior doorknobs are designed to slide over a spindle that is cylindrical, which is mounted in the door as part of the latch assembly. If yours feels jiggly, it could be due to tiny screws, referred to as a setscrew, on the inside of the doorknob that's keeping it from sliding over the spindle. Utilize a flashlight to help you locate the screw and then use an Allen wrench to tighten it. Once the screw is tightened by turning the knob, test if it is solid. If your knob still feels like it's jiggly, then the set screw isn't in place properly. To make sure the screw is in the correct position you should look for a small, identical button on the spindle. Move the knob over the spindle after pressing the button using the flathead screwdriver. The knob should click into position as you do this, indicating it is in the correct position on the spindle. After you've confirmed that the set screw has been properly positioned, tighten it once more to secure the knob. This should resolve the issue however, if it doesn't it is, you will need to remove the knob and check the backplate for missing or loose screws. If this is the case, you'll require replacing these screws before re-securing the knob or handle. If you're not happy with this type repair, you must call an experienced locksmith who can provide repairs for damaged locks. 2. Key Won't Turn in Lock There are several reasons why the lock key might stop turning. One of the most common reasons is that the pins within the cylinder are beginning to wear out, which means they no longer have the proper shape to move the sliders, wafers, or tumblers that allow the key to open the lock. In this instance an easy fix is to spray the lock with graphite spray or silicone-based lubricant to coat the pins and allow them move again. If the problem is more serious, and the key is bent, you may have to have it straightened by a professional. A professional locksmith will use an instrument that is specially designed with an angled edge that fits into the groove on the tip of the key. This type of tool is not available in hardware stores, however you can purchase an entire kit of the correct tools online or at the locksmith shop. Another possibility is that the lock is dirty or damaged. The accumulation of dust over time can cause problems in the lock cylinder and cause the pins or springs to get stuck. In this case, you'll need to spray the lock with graphite spray, or a silicone-based lubricant to get rid of it and return the pins to their original positions. It may also be a problem if the key has been damaged. Keys are worn down over time by frequent use, which could result in the groves wearing down or even become smoother. This could result in the key not being able to fit in the cylinder. It is essential to check frequently to ensure that the key is fitted correctly. Locks can freeze in the winter months. Repair My Windows And Doors can stop the springs and pins from moving when keys are put in. This can be a frustrating issue however it is usually solved by warming the lock by using hot water and then changing the lubricant. If the lock is damaged or frozen beyond repair, it may need to be replaced by an expert. 3. The Lock isn't Turning If you've ever encountered an unresponsive lock and isn't opened it can be incredibly frustrating. If it happens often, you may want to consider contacting locksmiths to check it out and see if they can help. This isn't always needed however, as some issues can be fixed by yourself. Often the key won't turn in a lock due to it is damaged. This can happen if you've lost your keys or it is broken in the lock. Rather than trying to fish it out of the lock which could cause the damaged piece of the key to move further inside the mechanism, which could cause the issue to get worse Try using needle-nosed pliers to take it out of the lock. You should be cautious not to break any broken pieces using the pliers, or you may damage the lock. There could be an improperly aligned lock that could cause the door to not to latch properly. If you have an additional lock key, you can test it to verify that the lock is operating properly. If you discover that the lock is misaligned, tightening the screws around the strike plate can fix the problem and allow the lock to work normally. Another reason your key might not be turning is that there is dirt or dust in the lock that is hindering it from turning. This issue can be resolved by using the lubricant based on silicon or graphite to coat the pins of the lock. This will allow them to move up and down as normal. It is recommended to avoid oils-based products, such as WD-40, because they can cause more blockages in the future. It is important to remember that certain keys won't fit in all locks. If yours is one of these you might want to get a replacement key from an area hardware store, so that it will work inside the lock. 4. The Cylinder is Rotating Hairpin vortices can form when a cylinder turns in a confinement space. These vortices can exert significant forces on the cylinder rotating. These forces are proportional the radius of curvature that is dimensionless x and the confinement factor k. The simplified model that is presented here predicts the effect of these parameters on the force and torque on the cylinder that is confined. The head, the tube and the main body of the cylinder are made of aluminum alloy. If you are able to insert your key and turn it but the lock does not rotate the cylinder, it could be damaged. Rekeying your lock could resolve the problem. There are kits designed specifically for this purpose and can be purchased online or in most big box stores.