When temperatures drop, moisture inside a lock can freeze, making the key jam or preventing the lock from turning. The simple fix shown in the photo involves heating the key (usually with a lighter or match) and inserting the hot key into the frozen lock. The heat transfers to the lock’s internal mechanism, melting the ice and freeing the pins so the lock operates smoothly again.
### Step-by‑step guide
1. Heat the key: Hold the tip of your key over a flame for about 10–15 seconds. Be careful not to burn yourself or melt the key’s material.
2. Insert quickly: Slip the hot key into the frozen lock as soon as it’s warm.
3. Turn gently: Once the key is in, turn it normally. The heat should melt the ice inside, allowing the lock to open within a minute.
4. Repeat if needed: If the lock is heavily frozen, you may need to reheat the key and try again.
### Tips & precautions
– Use a metal key; plastic keys can melt or warp.
– Avoid using excessive flame that could damage the lock’s finish.
– For safety, keep a fire extinguisher or water nearby when working with open flames.
– If the lock frequently freezes, consider applying a lock de‑icer spray or lubricant to prevent future issues.
This one‑minute trick can save you from being locked out on a frosty day, and it’s a handy tip to keep in your winter emergency kit.
Want me to also explain how to prevent door locks from freezing in the first place?
