How to Open a Door With a Stuck Cylinder

Door locks operate via the turning of a key inserted into a cylinder. The key turns the cylinder, which fastens or unfastens the latch, or deadbolt, that secures the door. Though cylinder locks feature simple mechanisms that make them a generally reliable security choice, they are not infallible. Stuck cylinders occur as a result of dirt buildup or freezing weather but can typically be remedied without much fuss.

Spray lubricant
Lock de-icer
Gloves

Instructions

- 1
  Attach a straw nozzle to your spray lubricant, such as spray graphite, if the product includes a straw. Aim the nozzle at the keyhole and spritz it with two or three sprays.
- 2
  Spray the key with lubricant. Insert the key in the keyhole and try turning the cylinder once again. You may have to repeat the process a few times and jiggle the key in the lock to fully lubricate the cylinder.
- 3
  Repeat the process with lock de-icer, which contains alcohol and strong solvents to cut through dirt deposits, if the spray lubricant doesn't work.
- 4
  Heat your key if the stuck cylinder is a result of freezing weather. Hold it over a lighter or match for about ten seconds or place it on your car's hot radiator or engine block for about five minutes. Wear thick gloves before handling the heated key. Attempt to unlock the door with the heated key. Once inserted, jiggle the key in a back and forth motion to unfreeze the cylinder. Once the cylinder is thawed, turn it slowly. Reheat the key as necessary; it may take a few tries to thaw the cylinder.

How to Make Waterproof Canvas Tarps With Turpentine

What Fills Cracks Between Cement and a House?

General Home Repair