U9.NDZ+U9.LSP, Unlocking the entrance door with key due to malfunction

"Unlocking the entrance door with a key"

It came with a main lock U9.LSP and an auxiliary lock U9.NRZ.The auxiliary lock was working without any problems.

However, the main lock U9.LSP does not turn. I was able to unlock it after turning it several times.

But the door won't open. Even though the door was unlocked, it was difficult to open due to interference with the door frame. Even a man's hands required a lot of force. It would have been impossible with women's strength.

Moreover, the setting sun was quite strong at the site, and the door appeared to be deformed by the heat. There were some scratches on the top of the door frame. There didn't seem to be any problems in the morning, so I'm sure the problem was caused by heat deformation.

On the other hand, there was no problem with the cylinder operation, but there was a problem with the position of the deadbolt and strike. Because the door is deformed upwards by about 3 mm, the bolts cannot be inserted completely.

The problem was that the bolt could not move due to large friction because it only went in halfway. The strike is recessed and cannot be adjusted, and the LSP main case is also not adjustable. The hinges were also not adjustable.

In the end, it will be necessary to shave 3 mm off the top of the strike, but this work will be postponed this time. It has been transferred to a management company. It was agreed that we would only use the auxiliary lock for a while and see how it goes.