SolarEdge Status Codes

Troubleshooting SolarEdge Inverter Error Codes

If you encounter issues with your SolarEdge inverter, try restarting it first. This simple step can often resolve common problems.

If restarting your inverter doesn’t resolve the issue, refer to the list below for troubleshooting steps specific to each SolarEdge error code.

Error Code Single Phase Error Code Three Phase LCD Message Description Troubleshooting
N/A 1-4 Fan # Failure One of the fans is not working Check the Fan Health Status – Three Phase Inverters on page 39. If required, replace the fan (a replacement kit is available from SolarEdge).
4, 5, 8, 12, 18-23, 39,42,45 45, 48, 50-53, 94, 108-111, 113 SW Error Internal software error If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
N/A 112 Wrong AC Connection The lines connections to the inverter are incorrect, for example: AC line 1 from the grid is connected to line 2 at the inverter so there is no 120deg between L2 to L1 and L3 to L2 at the inverter side. Switch between L1 and L2 or L2 and L3 connections.
9, 13 N/A AC Current Stage Internal hardware that measures AC current has measured substantially high output currents. This may occur because of changes in the AC voltage or a switching load near the site. If the fault persists:
  • Check the AC connection to the
inverter.
  • Check with the grid operator if a large
surge source or irregular load exists near the site.
  • If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
10, 37, 38 76, 77, 90 Ground Current – RCD Ground current surge. The internal hardware that measures ground fault has measured substantially high ground currents. Ground faults may occur due to insufficient insulation to the ground. ELECTRICAL HAZARD. Do not touch insulated wires when the inverter cover is removed. Only a qualified electrician should handle this problem and only after taking proper precautions. 1 Turn the inverter ON/OFF switch to OFF. 2 Wait five minutes for the input capacitors to discharge. 3 Disconnect the AC breaker. 4 Disconnect the DC inputs. 5 Connect each DC string separately, turn the AC and the inverter ON/OFF switch to ON, until the error appears for the faulty string.
  • Do not connect strings with a grounding fault to the inverter.
  • For further documentation about possible ground current error sources and solutions contact SolarEdge support.
  • A certified installer must fix the faulty string before connecting it to the inverter.
14 58/59/60 AC Voltage Too High (Line 1/2/3) AC voltage surge. The High internal hardware that measures AC voltage (Line 1/2/3) has measured substantially high sudden output voltage. If the fault persists:
  • Check the AC connection to inverter.
  • Verify that the inverter is set to the correct country.
  • Check with the grid operator if a large surge source or irregular load exists near the site.
  • Verify that the output wire size matches the distance between the inverter and the location of the grid connection.
  • Use a larger gauge wire for the AC output.
  • Refer to the AC Wiring Application Note, available on the SolarEdge website here
15 102 DC Voltage Too High DC overvoltage.The input DC voltage exceeds the maximum supported level. The SolarEdge system normally eliminates DC overvoltage errors: When DC overvoltage is detected, the inverter shuts off the power optimizers and restarts. If the fault persists:
  • Turn OFF the inverter ON/OFF switch.
  • If after five minutes, the LCD panel does not show a low safety voltage (1V per optimizer), check which string is malfunctioning, and recheck its connections to the inverter.
  • Proceed according to Power Optimizers Troubleshooting on page 57
  • Re-commission all inverters in the site, as described in Chapter 4: Commissioning the installation
16 123 Measurement Error Internal hardware error If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
17 104 Temperature Too High Over temperature. If the fault persists:
  • Verify that proper clearances exist around the inverter.
  • Make sure that the heat-sink fins are clear of first and obstacles.
  • Reinstall in a cooler location
24 N/A Faulty Temp. Sensor Broken or unconnected Temperature Sensor. If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
25 121 Isolation Fault PV Isolation fault. The inverter has detected the PV solar array is not properly isolated from ground earth. The isolation is checked each time the inverter starts up. If the fault persists: Check the PV installation for isolation problems and ground leakage. Only a certified PV installer must fix the faulty string before connecting it to the inverter.
26 122 Fault AC Relay The AC relay failed during wake-up tests. If the fault persists: Disconnect inverter from AC grid. Contact SolarEdge support or your Solar provider. Replenishable Energy 07 4031 2251.
27 95, 106, 120, 125, 126 Measurement Error Internal hardware error. If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
28 N/A RCD Sensor Error The RCD measurement has failed during the wake-up test phase. If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
29-30 N/A Phase Balance Error The monitoring hardware that checks the balance of each phase (L1-N and L-2-N) has exceeded the allowed limit.
  • Check the grid connection.
  • Check the GND wire connection.
  • Check the L1, L2 and Neutral wire connections.
  • Verify symmetric load between L1 and L2.
  • Consult the local grid authority
31, 33 64/65/66 AC Voltage Too High (Line 1/2/3) Grid voltage is above the limit permitted.
  • Verify that the inverter is set to the correct country.
  • Turn OFF the inverters in the site and verify AC grid voltage.
  • If the inverter is located far from the connection point to the grid, use a larger gauge AC wire.
  • Consult the grid operator.
  • If permitted by local authorities, use theSolarEdge Configuration Tool to change the settings.
32, 41 61, 62, 63 67/68/69 AC Voltage Too Low Grid voltage is below the limit permitted.
  • Verify that the inverter is set to the correct country.
  • Consult the grid operator.
  • If permitted by local authorities, use theSolarEdge Configuration Tool to change the settings.
34 79/80/81 AC Freq Too High (Line 1/2/3) Grid frequency is above the limit permitted.
  • Verify that the inverter is set to the correct country.
  • Consult the grid operator.
  • If permitted by local authorities, use theSolarEdge Configuration Tool to change the settings.
35 82/82/84 AC Fre Too Low (Line 1/2/3) Grid frequency is below the limit permitted.
  • Verify that the inverter is set to the correct country.
  • Consult the grid operator.
  • If permitted by local authorities, use theSolarEdge Configuration Tool to change the settings.
36 72/74/75 DC Injection (Line 1/2/3) DC feed detected on AC output. If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
40 N/A Islanding AC grid voltage is out of range. The inverter has shut off due to islanding. When AC voltage returns, the inverter should restart after the reconnection time, which depends on  country grid connection codes. If the problem persists, consult with the grid operator whether frequent AC disruptions have occurred at the site.
43 N/A Isolation Fault Internal hardware error. If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
44 44 No Country Selected The inverter is not configured to any country. Select the country.
46 N/S Phase Unbalance Uneven power supply in three inverters. Change the Phase Balance option in theInverter’s LCD menu to Disable.Refer to Power Control on page 35 and to the SolarEdge Phase Balancing Manual, available on the SolarEdge website here
N/A 103, 146 DC Voltage Too Low/UDC Min The input DC voltage is below the minimum level that is supported. Turn the inverter OFF and then ON. If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
N/A 49 SE Communication Internal software. If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
N/A 78 Grid Sync Error Grid voltage or frequency is unstable. If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
N/A 91/92/93/96/97/98 AC Over Current Line 1/2/3 Grid Error If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
N/A 99-101 AC Voltage Too High Line 1/2/3 Grid Error Turn the inverter OFF and then ON. If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.
N/A 105 Temperature Too Low Under temperature. If the fault persists, reinstall the inverter in a warmer place.
N/A 124 Ground Current – RCD Internal hardware error. If the fault persists, contact SolarEdge support or your solar provider. Replenishable Energy 07 4031 2251.

Further Support

If issues continue to persist, you can contact the Sungrow Service Department. You can their contact information here.