TS4-R Quick Start Guide

Optimizers and all other Tigo MLPE with monitoring use serial numbers to specify which units are installed in a system. During initial installation, and anytime a units is replaced, the new serial numbers must be entered.

To do this, you must be a Installer user type on the system. System Owner user types are specifically prevented from changing serial numbers.

If you are not a Installer user type on the system, have System Owner send email to support@tigoenergy.com with your Tigo user account email and granting permission to add you as in Installer to their system.

Detailed directions for Serial Number changes are here:

https://support.tigoenergy.com/hc/en-us/articles/360009217874-Changing-the-Serial-Number-for-a-Replacement-Optimizer

Physical installation details are in the Quick Start Guide as shown below: