The motherboard has a coin battery that, when it stops working, causes the motherboard to lose all parameters and automatically reset to factory default. Typically, the battery lasts for 2-3 years and needs to be replaced if it fails.

The battery code is 2032

It is possible that after you change the battery the Thread Break Sesor will not work if your machine needs to be set up at TB Board. Whatch the video on how to fix this.

To save time when restoring your machine's parameters, make sure to save the parameter file. After changing the battery, your machine will reset its parameters. If you have the parameter file, you can restore your machine in seconds.