We recommended periodical lubrication, specifically a PTFE lubricant, that lasts through inclement weather. The more exposed, the more frequent the lubrication.
1. If the lock is exposed to the elements, then 26 degrees could mean the lock has ice build-up, restricting free movement of the shackle to open position.
2. A shot of lubricant into the keyhole will more than likely free up the seized mechanism.
3. Jiggling the key goes a long way to freeing up a seized cylinder or stuck mechanism.
4. Wrapping/smacking the lock is okay, when in effort to dislodge seized or oxidized components.
If you've been using your Commando Lock on the exterior and now are having difficulty opening it. We recommend lubricating the keyway with a product that has PTFE in their recipe. WD 40 has one called 3-in-One.