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ErrorLib — Industrial Fault Code Library

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2015

PV String Loss Warning

Huawei · SUN2000 Solar Inverter

What does 2015 mean?

This alarm indicates an abnormal PV string status where a single PV string is lost, both 2-in-1 PV strings are lost, or one of the 2-in-1 PV strings is lost. This suggests a disconnection or fault in the PV string terminals or inverter terminals.

Common Causes

  • A single PV string is lost.
  • Both 2-in-1 PV strings are lost.
  • One of the 2-in-1 PV strings is lost.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check whether the solar inverter terminals are properly connected.

  2. 2

    Check whether the PV string terminals are properly connected.

  3. 3

    If a 2-in-1 terminal is used, check whether it is normal.

Browse all codes in this manual (33)
Verified technical data. Last updated: April 2026

Related Faults

2001High String Input Voltage2002DC Arc Fault2003DC arc fault
Source: Huawei SUN2000 Solar Inverter
Open Manual (Page 122)Search more codes in this manual