YKKap Sliding Door "Renju" Unlock Repair

"I have the key, but the front door does not open."

It is said that the lock in the middle cannot be opened in YKKap's "Renju".It seems that it was able to open until yesterday.

"So, did the parts get damaged? 』\

The thumbturn is broken and disconnected.When I disassembled it, the teeth of the gear of the Duracon part were broken.This is a common problem with Renju.

This is a good price, although there is no choice but to replace it with a new one.When I presented the quotation for the time being, it was decided to forgo.

The gear teeth are completely broken and go inside, so remove them from the unit and reassemble them.

The key will be operated at another doorstop-lock of the sliding door.