The door guard accidentally closed

"When I came back from going out, the door guard was closed."

The unlocking method differs depending on whether it is a chain type or a U-shaped type. I checked the rental information on the website with photos. It looked like a U shape.

When it arrived, it was a disc tumbler type MIWA LA cylinder.I could understand because the property was built 25 years ago, but I wonder if the residents here have lived there since then.

If the tenant changes, the cylinder should be replaced.

Well, the work method has been confirmed, so it was completed with normal unlocking.

When I unlocked it, the spring on the door guard push pin was not fully working. It may be damaged due to aging. At a later date, I will be requesting a replacement from the management company.

Furthermore, it had a thumbturn cover that I didn't see. Did you install it yourself? It is difficult to distinguish whether or not the SRE is locked. It bothered me a little, but I didn't mention it.