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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

2093

Abnormal DC Switches

Huawei · SUN2000 Solar Inverter

What does 2093 mean?

This Minor alarm indicates that a DC switch is not in the ON position, or its reset button is not fully pressed down. This prevents the proper closing of the DC circuit, affecting inverter operation.

Common Causes

  • The DC switch is not in the ON position.
  • The DC switch reset button is not pressed down to the bottom.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check whether all DC switches are in the ON position. If not, turn the switches to the ON position (rotate with force to ensure they are in position).

  2. 2

    If the switches still cannot be turned to the ON position, press the reset buttons of all DC switches inwards until they cannot be moved further, and then turn on the DC switches again.

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 132)Search more codes in this manual