Sungrow Inverter Error Codes

Below is a list of the various codes that may appear on your Sungrow inverter. We recommend restarting your inverter if any issues do arise.

Just like restarting your computer, restarting your inverter can fix some common issues.

These common issues include:

  • Faults and errors that are displayed on the inverter (take note of these before restarting your inverter in case the error continues). These may relate to external factors like grid voltage or wiring
  • The system not communicating with internet monitoring (you may also need to restart your modem)
  • If the system is general not performing as it should

 

In the event that restarting your inverter doesn’t work, here is a list of what to do in the event of each Sungrow error code.

Code  Meaning  What to do?
 0002 The grid voltage exceeds inverter allowable

upper limit.

 Check the voltage of the grid.If the grid voltage exceeds the permissible range of inverter protection parameters, ask the utility grid company for a solution. If the grid voltage is within the permissible range, contact Sungrow Service Dept or Inspire Energy.
 0003 Grid transient voltage exceeds the permissible

range

 This is a short-term fault due to grid condition. Inverter should fix itself. If the fault still appears, contact Inspire Energy
 0004 The grid voltage is below inverter’s allowable

lower limit.

 Check the grid voltage.  If the grid voltage exceeds the permissible range of inverter protection parameters, ask the utility grid company for a solution. If the grid voltage is within the permissible range. If code continues to appear, contact Inspire Energy
 0005 The grid voltage is too low. This is a short-term fault due to grid condition. Inverter should fix itself. If the fault still appears, contact Inspire Energy
 0006 The AC output current exceeds inverter allowable upper limit. The inverter will resume if the output current falls below the protection value.  If the fault still appears, contact Inspire Energy
 0007 Transient AC overcurrent The inverter will self-recover after several seconds. If the fault still exists, please contact Sungrow Service Dept.
 0008 The grid frequency exceeds inverter allowable upper limit. Check the grid frequency. If the grid frequency exceeds the permissible range of inverter protection parameters, ask the utility grid company for a solution. If the grid frequency is within the permissible range, contact Sungrow Service Dept.
 0009 The grid frequency is below the inverter allowable lower limit.
 0010 Islanding Check whether AC circuit breaker is triggered, the cables are firmly connected. Check whether the grid is not in service. If all conditions are OK and this fault still occurs in the LCD screen, contact Inspire Energy
 0011 The DC component of AC current exceeds the inverter limit. Inverter should fix itself but if the fault still appears, contact Inspire Energy
 0012 A failure current is detected. Check the PV strings for ground fault. If the fault still appears, contact Inspire Energy
 0014 The average grid voltage exceeds the permissible range for over 10 minutes. Wait a moment for inverter recovery. Check the voltage of the grid. If the grid voltage exceeds the permissible range of inverter protection parameters, ask the utility grid company for a solution. If the fault still appears, contact Inspire Energy
 0015 The grid voltage exceeds the permissible range Check the model of the AC cables. The inverter should fix itself. Wait a moment for inverter recovery. If the grid voltage exceeds the permissible range of inverter protection parameters, contact Inspire Energy
 0016 The bus voltage or power is high. Inverter should fix itself. If the fault still appears, contact Inspire Energy
 0019 The transient bus voltage is high.
 0020 The bus voltage is high.
 0021 PV1 input overcurrent is detected Check the layout and the wiring of PV1 input.
 0022 PV2 input overcurrent is detected Check the layout and the wiring of PV2 input.
 0036 The temperature of radiator is too high. Check whether the placement of the inverter is correct. Check whether the inverter operating ambient temperature is more than the range. Check whether the AC output power exceeds the nominal power. If the fault still appears, contact Inspire Energy.
 0037 The internal temperature of inverter is too high
 0038 Relay fault is detected Inverter should fix itself. If the fault still appears,  contact Inspire Energy
 039 The insulation resistance is low. (ISO-flt) Check whether the positive and negative of PV panels is short-circuited with ground lead.

Inverter should fix itself. If the fault still appears, contact Inspire Energy
 041 Leakage current self-test abnormality Inverter should fix itself. If the fault still appears,  contact Inspire Energy
 047 The PV configuration mode set in the phone application interface is not in accordance with the configuration in the connection cabinet. Disconnect the inverter. Re-select PV configuration mode and re-connect PV strings.
 048 Sampling channel failure Inverter should fix itself. If the fault still appears, contact Inspire Energy
 053 Auxiliary DSP detects grid voltage exceeds set protection value Check the grid voltage. If the grid voltage exceeds the permissible range of inverter protection parameters, ask the utility grid company for a solution. If the fault still appears, contact Inspire Energy.
 054 Auxiliary DSP detects grid frequency exceeds set protection value
 056 Auxiliary DSP detects grid leakage current exceeds set protection range Check whether there is a grounded fault of the PV string. If the fault still appears, contact Inspire Energy.
 057 Auxiliary DSP AC current sampling channel anomaly Inverter should fix itself. If the fault still appears, contact Inspire Energy
 058 Auxiliary DSP detects AC current DC injection exceeds inverter set protection range
 059 Main and auxiliary DSP communication anomaly
 060 Main and auxiliary DSP sampling difference
 070 Fans are defective Stop the inverter and disconnect the AC and DC cables. Check whether the fan duct has been blocked. If not, replace fans.
 087 Arc self-detection anomaly warn Wait a while. Contact Inspire Energy.
 088 Arc anomaly fault Stop the inverter and disconnect the AC and DC cables. Check cable connection for aging and looseness. Re-power on and remove the arc warn manually. Contact Sungrow if this fault still occurs.
 089 Arc detection OFF warn Remove the warn by enable arc detection function or keep the warn by closing arc detection function.
 100 The AC output current exceeds inverter

protection limit.

 The inverter will resume if the output current falls below the protection value. If the fault still appears, contact Inspire Energy.
 101 The grid frequency exceeds inverter allowable upper limit. Check the grid frequency. If the grid frequency exceeds the permissible range of inverter protection parameters, ask utility grid company for solution. If the grid frequency is within the permissible range, contact Inspire Energy
 102 The grid frequency is below the inverter allowable lower limit.
 106 The inverter is not grounded Check whether there is a reliable inverter grounding line, if there is access to the ground, and the fault still exists, please contact Sungrow Service Dept.
 200 The bus voltage is high. Wait for inverter recovery after bus voltage lower.  If the fault still appears, contact Inspire Energy.
 201 The bus voltage is too low.
 202 PV current overcurrent Wait for inverter recovery after DC current is reduced. If the fault still appears, contact Inspire Energy.
 205 AC output replay abnormal Inverter should fix itself. If the fault still appears, contact Inspire Energy.
 307 DC power is too high Check whether the configuration of PV is in the range indicated in the specification. If the fault occurs repeatedly, contact Sungrow Service Dept.