Yellow tags after App discovery


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    Curtis Community Moderator

    Hello Chris Hands

    My sincere apologies for the delayed response. It looks like our Spam-Filter caught your original Community Post and we did not see it, until now. 

    Did you ever find an answer to your question? 

    The yellow bars in your image indicate that those units are from the modern Tigo TS4-A-O series. The grey units represent Optimizers that are not communicating. This can be caused by simple issues like an incorrect Serial Number, or it can also indicate other communication issues, like: 

    • Distance from TAP
    • Assigned to wrong TAP (in a multi-TAP system)
    • Extreme block-shading event
    • Radio interference
    • Not connected to PV Module, correctly
    • Damage to the Tigo TS4

    In either case, it's best to always Contact Tigo Support for issues like this. Our Support Engineers can review your system and provide valuable insight and potential solutions for just about any issue you may experience. 

    Lastly, click here for more information on Tigo's PV-Module Colors.


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