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Sunsynk F18 Overcurrent fault

Rockster
in Inverters

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I have an 8KwH Sunsynk inverter and three 5.1kwH Dyness batteries.  The inverter trips every time the eskom power goes off and comes back.  My installer has checked everything and is unable to find what is causing this?  The inverter shows : "F18 HW_Ac_Overcurr_Fault" as the fault.  Thanks

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    This happened to my 12kw 3-phase Sunsynk when grid was on. Hasn’t repeated itself again in the last 3 weeks. 
     

    No response from others about what it related to. My thread:

     

    Edited by ZaydS

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