Been using a door sensor on the front door for the past few years with no problem. Lately the sensor does not recognize when the door is closed. It will change to open but only sometimes will it register closed. I don’t think its a connection issue. I can see that the red light does not trigger sometimes when the door is closed.
I tried moving the pieces closer but that has not solved the problem and I have changed the battery.
Its important since this triggers the door lock. No one locks the door when they enter since they have been accustomed to the door locking itself after 15 minutes.
Do these wear out? Are there brands that are better than others?