Sungrow SG125HV/SG125HV-20 Error 088: Electric arc fault

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

Fault code088

This Sungrow SG125HV/SG125HV-20 inverter has detected a dangerous electric arc fault. The manual's first action is: “1. Disconnect the DC inputs and check whether DC cables are damaged, whether the wiring terminals or fuses are loose or in poor contact, and whether component parts are burnt. If so, take corresponding corrective measures.”

Model
Sungrow SG125HV/SG125HV-20
Display shows
Electric arc fault (088)
Type
Fault code
Source
Manual p. 84

What 088 means

Electric arc fault p. 84

What to do

  1. 1. Disconnect the DC inputs and check whether DC cables are damaged, whether the wiring terminals or fuses are loose or in poor contact, and whether component parts are burnt. If so, take corresponding corrective measures. p. 84
  2. 2. After taking corresponding measures in step 1, reconnect the DC inputs. Remove the arc fault through the APP or LCD screen so that the inverter will recover to be normal. p. 84
  3. 3. If the fault is not recovered by the foregoing reasons and still exists, contact Sungrow Service. p. 84

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

If 088 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 088; 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.