Sungrow SG125HV/SG125HV-20 Error 012: Excessive leakage current

Solar inverter · taken from the manufacturer’s manual, pages cited

Fault code012

Excessive leakage current indicates abnormal current flow due to poor sunlight, dampness, or insulation issues in cables. The manual lists no action for this code.

Model
Sungrow SG125HV/SG125HV-20
Display shows
Excessive leakage current (012)
Type
Fault code
Source
Manual p. 78

What 012 means

Excessive leakage current p. 78

Common causes

  • The fault can be caused by poor sunlight or damp environment, and the inverter will be reconnected to the grid after the environment is improved. p. 78
  • If the environment is normal, check whether the AC and DC cables are well insulated. p. 78
  • If the fault is not caused by the foregoing reasons and still exists, contact Sungrow Service. p. 78

If 012 is still not resolved

  • Refer Servicing To Qualified Service Personnel. p. 5
    “Refer Servicing To Qualified Service Personnel.”
  • Check user manual before service! p. 5
    “Check user manual before service!”
Open the manual at page 78 All SG125HV/SG125HV-20 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 012; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Sungrow. Found a mistake? Report an error.