Sungrow SG125HV/SG125HV-20 Error 105: Protection self-check failure on grid side

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

Fault code105

This Sungrow SG125HV/SG125HV-20 inverter has failed its self-check for grid-side protection. The manual's first action is: “Restart the inverter or clear the fault through the App. If the fault still exists, contact Sungrow Service.”

Model
Sungrow SG125HV/SG125HV-20
Display shows
Protection self-check failure on grid side (105)
Type
Fault code
Source
Manual p. 84

What 105 means

Protection self-check failure on grid side p. 84

What to do

  1. Restart the inverter or clear the fault through the App. If the fault still exists, contact Sungrow Service. p. 84

Before you service the product, read the safety instructions in the manual p. 5.

If 105 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 84 All SG125HV/SG125HV-20 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 105; 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.