ALPHA ed-Lock I can't enter my PIN because the numeric keypad doesn't respond.

"Sometimes the button on the electronic lock doesn't respond."

From the name of the property, I immediately knew that it belonged to a series that corresponded to the past.

Possible causes are insufficient battery or deterioration of the numeric keypad control board. When the base deteriorates, the only option is to replace the main unit, which takes time and cost.

When I arrived at the scene and checked it, I found that the button response was indeed unstable. When you look at the battery, the cover is slightly open. It wasn't locked and came off easily. At the same time, the battery was draining. (Probably a bad contact)

I couldn't confirm that the battery terminals inside the main unit were corroded either, so there must have been a problem with the way they were set up. Please be careful as the cover will not close unless you push it in firmly.

Since the completion time was fixed, I was relieved for a simple reason.