MIWA PR.LD Cylinder malfunction overhaul repair

"I can't turn the key. I put alcohol gel in it, but it doesn't fix it."

I asked again at first, but it was still "alcohol gel".

The client was an elderly woman who was likely to have some cognitive difficulties.She said she put the alcohol gel she had on her own, but she still couldn't turn the key.

There may be foreign substances, so this time we will carefully disassemble and clean.After all, it was malfunction due to aged deterioration. (The cylinder is also installed upside down. This is a mistake that is easy to fall into with the BH type installation.)

In addition, an abnormal noise was confirmed due to the improper installation of the NLS retrofitted security thumbturn, but this time I only pointed it out.It was installed by a past resident.I told them to ask the management company to remove it if necessary.