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SOFAR (Shenzhen SOFARSOLAR) · SOFAR 3.3–12KTLX-G3 (three-phase grid inverter) · Operation

Sofar KTLX-G3: Normal, Alarm and GFI LEDs and the event list

Summary (editorial)

The LEDs show normal operation, alarms and earth faults. The manual explains how to browse the event list.

✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.

From the manufacturer's documentation (English source wording, with page)

  1. "GFI" red light on = GFCI faulty[1]
  2. "Normal" green light flashing = counting down or checking[2]
  3. "Normal" green light on = normal[3]
  4. "Alarm" red light on = recoverable or unrecoverable faulty[4]
  5. "^" short press = go up; long press = exit menu or current interface; "v" short press = go down; long press = enter menu or current interface[5]
  6. Long press the down button under standard interface to enter the main interface: 1. Enter setting, 2. Event list, 3. SystemInfo, 4. Display time, 5. Software update[6]
  7. Event list displays the real-time event records, including the total number of events and each specific ID no. and happening time; recent events are listed in the front; 1. Current event, 2. History event[7]
  8. When troubleshooting: 1) check the warning message or faulty codes on the inverter information panel; 2) if no error code is displayed, check: clean, dry, ventilated environment; is the DC switch turned off; cables and connections in good condition; configuration settings correct[8]
  9. If an earth fault alarm occurs, the fault will be displayed on the LCD screen, the red light will be on, and the fault can be found in the history of the fault; with Wi-Fi/GPRS the alarm can be seen on the monitoring website and in the app[9]

⚠ Work on refrigerant circuits, mains electricity and PV DC wiring is for qualified technicians only.

The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →

Sources

Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.

  1. [1] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 54 official manufacturer document quote verified "gfi" red light on = gfci faulty
  2. [2] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 54 official manufacturer document quote verified "normal" green light flashing = counting down or checking
  3. [3] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 54 official manufacturer document quote verified "normal" green light on = normal
  4. [4] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 54 official manufacturer document quote verified "alarm" red light on= recoverable or unrecoverable faulty
  5. [5] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 54 official manufacturer document quote verified "v" long press down button = enter menu or current interface
  6. [6] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 57 official manufacturer document quote verified long press the down button under standard interface to enter into main interface,
  7. [7] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 64 official manufacturer document quote verified event list is used to display the real-time event records,
  8. [8] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 68 official manufacturer document quote verified check the warning message or faulty codes on the inverter information panel
  9. [9] SOFAR 3.3~12KTLX-G3 – User Manual (2024-10) , p. 68 official manufacturer document quote verified the fault will be displayed on the lcd screen, the red light will be on,