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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.

2087

Internal Fan Abnormal

Huawei · SUN2000 Solar Inverter

What does 2087 mean?

The internal fan is experiencing an abnormality, such as a short circuit, insufficient power supply, or physical damage. This Major alarm indicates a critical cooling issue within the inverter, which could lead to overheating and damage.

Common Causes

  • The internal fan is short-circuited.
  • The power supply for the internal fan is insufficient.
  • The internal fan is damaged.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the AC output switch.

  2. 2

    Turn off the DC input switch.

  3. 3

    Turn on the AC output switch and DC input switch after 5 minutes.

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 131)Search more codes in this manual