Life-safety issue with Wyze deadbolt. This will take some time to describe, but the problem could have resulted in being trapped in a burning building.
We have Wyze locks on the front and back doors. Recently the lock failed to unlock with the keypad. We opened it manually using the lever (from inside) then tried to relock it from the app. That also failed. We locked it manually and then tried to unlock it from the app. That failed differently: the bolt retracted, but the lever rotated a full 180 degrees but would rotate forward only 90 degrees. Trying a couple of more times left us with the bolt protruding into the jamb, fully locked, and the lever unable to retract the bolt. We were able to open the door only by removing the lock and retracting the bolt with a pair of pliers.
Needless to say, if we hade been trying to exit the building because of a fire we would probably have died.
The battery level, as indicated in the app, was 73%. When we put new batteries in, the lock recovered to a certain extent, but not completely. So we did a controlled test.
- Start with lock unlocked. Lever should be at 0 degrees (12 o’clock) but is actually at about 10 degrees.
- Put in old batteries. Light comes on. Lever advances to about 100 degrees (instead of 90). Lock makes a rising-whistle sound.
- Unlock from app. Lever rotates counter-clockwise about 200 degrees and makes quiet little grinding sounds. App says door is unlocked
- Try rotating lever clockwise. It moves only about a quarter turn. App says “manually unlocked”.
We did some more manipulations but the lock has clearly failed in a spectacular fashion. Oh, and when we looked again at the battery level, it now said 4% - not 73%.