Sungrow Inverter Errors on the App or LCD Screen
Sungrow Inverter Error Codes – If the Wi-Fi module is equipped, an error icon will be shown in the App once a fault occurs. For details, see the related manual. At the same time, the “Error” state will be shown on the main screen of the inverter.
| 002 | Grid over-voltage. The grid voltage exceeds the protective value. | 1. Check the voltage of the grid.
2. If the grid voltage exceeds the permissible range of inverter protection parameters, ask utility grid company for a solution. 3. If the grid voltage is within the permissible range, contact Sungrow Service Dept. |
| 003 | Transient over-voltage. The grid transient voltage exceeds the protective value. | 1. This is a short-term fault due to grid condition. Wait a moment for inverter recovery.
2. If the fault persists, please contact Sungrow Service Dept. |
| 004 | Grid under-voltage. The grid voltage is below the protective value. | 1. Check the grid voltage.
2. If the grid voltage exceeds the permissible range of inverter protection parameters, ask utility grid company for a solution. 3. If the grid voltage is within the permissible range, contact Sungrow Service Dept. |
| 005 | Grid under-voltage. The grid voltage is below the protective value, which is lower than the protective value of error 004. | 1. This is a short-term fault due to grid condition. Wait a moment for inverter recovery.
2. If the fault persists, please contact Sungrow Service Dept. |
| 006 | AC over-current.
The AC output current exceeds inverter allowable upper limit. |
1. The inverter will resume if the output current falls below the protection value.
2. If the fault persists, please contact Sungrow Service Dept. |
| 007 | Transient AC overcurrent. | 1. The inverter will self-recover after several seconds.
2. If the fault persists, please contact Sungrow Service Dept. |
| 008 | Grid over-frequency. The grid frequency exceeds the protective value. | 1. Check the grid frequency.
2. If the grid frequency exceeds the permissible range of inverter protection parameters, ask utility grid company for a solution. 3. If the grid frequency is within the permissible range, contact Sungrow Service Dept. |
| 009 | Grid under-frequency. The grid frequency is below the protective
value. |
|
| 010 | Islanding | 1. Check whether the AC circuit breaker is triggered.
2. Check whether AC cables are all firmly connected. 3. Check whether the grid is not in service. 4. If all conditions are OK and this fault still occurs in the LCD screen, contact Sungrow Service Dept. |
| 011 | DC injection over-current.
The DC current injection of AC current exceeds the upper limit. |
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
| 012 | Leakage current over-current.
The leakage current exceeds the upper limit. |
1. Check the PV strings for a ground fault.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
| 014 | 10-minute grid over-voltage.
The average grid voltage exceeds the permissible range for over 10 minutes. |
1. Check whether the inverter selected country code is the country you are in.
2. Wait a moment for inverter recovery. 3. Check the voltage of the grid. If the grid voltage exceeds the permissible range of inverter protection parameters, ask utility grid company for a solution. 4. If the fault occurs repeatedly, contact Sungrow Service Dept. |
| 015 | Grid over-voltage
The grid voltage exceeds the protective value, which is higher than the protective value of error 002. |
1. Check the model of the AC cables.
2. Wait a moment for inverter recovery. 3. If the grid voltage exceeds the permissible range, ask utility grid company for a solution. 4. If the fault occurs repeatedly, contact Sungrow Service Dept. |
| 016 | The bus voltage or power is high. | 1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
| 019 | Bus transient over-voltage.
The transient bus voltage exceeds the protective value. |
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
| 020 | Bus over-voltage.
The bus voltage exceeds the protective value. |
1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
| 021 | PV1 input over-current. | Check the layout and the wiring of PV1 input. | |
| 022 | PV2 input over-current. | Check the layout and the wiring of PV2 input. | |
| 028 | PV1 connection reverse. | Check the cable connections of PV1. | |
| 029 | PV2 connection reverse | Check the cable connections of PV2. | |
| 036 | The temperature of the radiator is too high. | 1. Check whether the ambient temperature shown on the screen is too high. Wait a moment for inverter recovery.
2. Check whether there is enough space for convection. 3. Check whether the inverter is in direct sunlight. 4. Check whether the fan is normal. Replace it if necessary. 5. Clean the air inlets. 6. If the fault persists, please contact Sungrow. |
|
| 037 | The internal temperature of the inverter is too high. | ||
| 038 | Relay fault on the grid side. | 1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
|
| 039 | The resistance (ISO-flt) insulation is low. | 1. Check whether there is a reliable inverter grounding line.
2. Check whether the positive and negative of PV panels is short-circuited with ground lead. 3. Wait a moment for inverter recovery. 4. If the fault occurs repeatedly, contact Sungrow Service Dept. |
|
| 041 | Leakage current sampling fault. | 1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
|
| 043 | Inner under-temperature fault. The ambient of the temperature inside the inverter is too low. | The inverter will recover once the ambient temperature rises above -25℃. | |
| 044 | Open-loop inverter self-test fault. | 1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
|
| 045 | PV1 boost circuit fault. | 1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
|
| 046 | PV2 boost circuit fault. | ||
| 048 | Phase current sampling fault. | 1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
|
| 053 | The slave DSP detects that the grid voltage exceeds the protective value. | 1. Check the grid voltage.
2. If the grid voltage exceeds the permissible range of inverter protection parameters, ask utility grid company for a solution. 3. If the grid voltage is within the permissible range, contact Sungrow Service Dept. |
| 054 | The slave DSP detects that the grid frequency exceeds the protective value. | 1. Check the grid frequency.
2. If the grid frequency exceeds the permissible range of inverter protection parameters, ask utility grid company for a solution. 3. If the grid frequency is within the permissible range, contact Sungrow Service Dept. |
| 056 | The slave DSP detects that the leakage current exceeds the protective range. | 1. Check whether there is a grounded fault of the PV string.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
| 059 | Communication alarm between master DSP
and slave DSP. |
1. Wait 1 minute for inverter recovery.
2. If the fault persists, contact Sungrow Service Dept. |
| 061 | Alarm for no inverter typesetting. | Contact Sungrow Service Dept. |
| 070 | Fans are defective | Stop the inverter and disconnect the AC & DC cables. Check whether the fan duct has
been blocked. If not, replace fans. |
| 084 | Warning for reverse cable connection of the Sungrow Meter. | 1. Check whether the power cable connections are correct.
2. For Sungrow single-phase meter, check whether the CT clamp of the 1-phase sensor is correctly placed. |
| 085 | Mismatched software version. | Please contact Sungrow Service Dept. |
| 100 | The AC output current exceeds the upper limit. | 1. The inverter will resume if the output current falls below the protection value.
2. If the fault persists, please contact Sungrow Service Dept. |
| 101 | Grid over-frequency. The grid frequency exceeds the protective value, which is higher than the protective value of error 008. | 1. Check the grid frequency.
2. If the grid frequency exceeds the permissible range of inverter protection parameters, ask utility grid company for a solution. 3. If the grid frequency is within the |
| 102 | Grid under-frequency. The grid frequency is below the protective value, which is lower than the protective value of error 009. | permissible range, contact Sungrow Service Dept. | |||
| 106 | The inverter is not grounded. Neither the PE terminal on the AC connection block nor the second PE terminal on the enclosure is reliably connected. | Check whether there is a reliable inverter grounding line, if there is access to the ground, and the fault persists, please contact Sungrow Service Dept. | |||
| 200 | Bus hardware over-voltage fault.
The bus voltage exceeds the protective value. |
1. Wait for inverter recovery after bus voltage lower.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
|||
| 201 | The bus voltage is too low. | 1. Wait a moment for inverter recovery.
2. If the fault occurs repeatedly, contact Sungrow Service Dept. |
|||
| 202 | PV hardware over-current fault. The PV1 or PV2 current exceeds the protective value. | If the fault occurs repeatedly, contact Sungrow Service Dept. | |||
| 203 | The PV input voltage exceeds the bus voltage. | Check the functionality of the PV connection terminals. | |||
| 306 | Input and output power mismatching fault. | If the fault occurs repeatedly, contact Sungrow Service Dept. | |||
| 315 | PV1 current sampling fault. | Channel sampling anomaly. Contact Sungrow Service Dept. | |||
| 316 | PV2 current sampling fault. | ||||
| 320 | Leakage current sensor fault. | Contact Sungrow Service Dept. | |||
| 409 | Both the ambient temperature sensor and the radiator temperature sensor fail. | If the fault occurs repeatedly, contact Sungrow Service Dept. | |||
| 503 | Ambient temperature sensor open circuit warning. | If the fault occurs repeatedly, contact Sungrow Service Dept. | |||
| 504 | Ambient temperature sensor short circuit warning. | |
| 505 | Radiator temperature sensor open circuit warning. | |
| 506 | Radiator temperature sensor short circuit warning. | |
| 501 | External memory reading/writing warning. | 1. The inverter can normally be connected to the grid.
2. Power on the inverter again. If the fault persists, contact Sungrow Service Dept. |
| 514 | Abnormal communication warning of the Sungrow Meter. (Inverter can be normally connected to the grid.) | 1. Check whether the power cable connections of the meter are correct.
2. Check whether the RS485 connection is correct. |
We need the following information to provide you with the best assistance:
- inverter type (e.g. string, central, grid-connected, hybrid, transformerless, single-phase, triple-phase, single MPPT, multiple MPPTs),
- product name,
- the serial number of the inverter
- error code / name, and
- a brief description of the problem.
Note: We provide our maintenance services in the NSW region. It doesn’t matter whether you are our customer or not, we help you get back on the grid. If you need further assistance you can talk to our experts at 1300 980 640. You can also get your faulty inverter replaced starting at just $499 fully installed. Click here to request a callback.
Frequently Asked Questions
What is Sungrow error 039?
Sungrow error 039 states that the resistance (ISO-flt) insulation is low. Follow steps in the table above to fix it on your own.
What is Sungrow inverter error 014 and how to fix it?
If the average grid voltage exceeds the permissible range for over 10 minutes. Try to fix it by following the steps given the table.
Can I fix Sungrow error 010 on my own?
Well, error 010 is Islanding and to check whether you can rectify it on your own, you need to follow the steps mentioned in the table.
What to do if there is abnormal communication warning of the Sungrow Meter (Sungrow error 514)?
Check whether the power cable connections of the meter are correct. Check whether the RS485 connection is correct.
Loved it. Awesome information on Sugrow error resolution.
I have Error Code 005 in my Sungrow inverter and I am unable to sort it. Please help!
May I know in which state you live Mam, so we can help you resolve it quickly!
I am from Bowen Hills – Brisbane.
Very Sorry Mam, we provide our maintenance services in NSW region only, so you can contact their toll-free number 1800 SUNGROW (786 476). They need the following information to provide you with the best assistance:
inverter type (e.g. string, central, grid-connected, hybrid, transformerless, single phase, triple phase, single MPPT, multiple MPPTs),
product name,
serial number of the inverter,
error code / name, and
a brief description of the problem.
Hope this will help.
Thanks for taking time and posting this information! Really helped me to rectify the issue in my inverter.
Appreciated!
Hello there! This post couldn’t be written much better!
Going through this article reminds me of my previous roommate!
He continually kept talking about this. I will forward this information to him.
Fairly certain he’ll have a good read. Many thanks for sharing!
thanks Solarmatic, very helpful fixing the issue with my inverter. very hard to find a solar company that wants to fix and repair once installed.
This is really appreciated that you have presented this data over here, I love all the information shared. It will be very helpful to understand the Sungrow SG2K/ SG2K5-S/ SG3K-S/ SG3K-D/ SG5K-D PV grid-connected inverter errors !! This is a lovely and informative post…
Would you guys please do a detailed guide for SMA inverters?
Appreciate your time and effort for this. Thanks, Solarmatic.
A detailed guide, I am bookmarking this page for future reference. Very informative and useful. Thanks, Solarmatic!
I resolved it myself in no time! Thanks, Solarmatic.
Nice Guide
Loved It!
Thanks for your detail on the error codes page. Appreciated.
Awesome content. Thanks
When I originally commented I clicked the “Notify me when new comments are added”
checkbox and now each time a comment is added I get three emails with the same comment. Is there any way you can remove me from that service? Appreciate it!
You’re removed from the list. Apologies for your trouble and thanks for informing us, we will fix the issue.
It helped me to rectify my error. Thanks.
Passing this on.
Appreciate you for sharing.
This information is appreciated! Thanks
Thanks, Solarmatic.
Great piece of content.
This really made me pay attention and fix my inverter issue. Thank you for sharing!
Thanks for replacing our faulty Inverter.
I learned new information from your psot, you are doing a great job. Continue
Thanks, Solarmatic! I was scared for no reason, thanks for this guide!
Loved it, my husband found this quite useful. Thanks for sharing!
This information is immensely helpful to me. Will follow you to see future writing from you!
Amazing write-up!
Useful post
My crowd on Facebook would enjoy this entry. Is it okay if I pass it on to them?
Sure Jack! Keep supporting and sharing.
Great share!
Nice info!
Thanks
Would you please post the error codes for more Abb inverters?
Hi, it is already live on https://solarmatic.com.au/hd/abb-inverter-error-codes/
Great information! Thanks, it helped me!
I pay a visit each day some web sites and information sites to read articles or reviews, but this blog provides feature
based posts.
Thanks!
Liked it.
Hi, thanks for the detailed error code resolutions and certainly enjoyed your page. Almost certainly I’m planning to bookmark your site. You really come with terrific posts. Thanks for sharing.
Thanks, Solarmatic, this post doesn’t need to better than that! Well-articulated points like these are rare to get. Now I can fix my inverter’s issue at ease.
I am really happy to find something useful regarding the error code resolution! Thanks
Thank you and good luck with the upcoming articles
You’re doing great work. Keep it up.
Impressive！
We need an inverter upgrade, please connect with me.
Call us now on 1300 980 640. Thanks
This is helpful, thanks!
Thanks for the callback guys!
Quite right! I think this is a great read.
I got my inverter replaced at just $499!
Awesome service. Thanks, Mr. Bell.
A pleasant read! Thanks for sharing the information!
Liked it!
Loved it! Thanks
Sharing it on my Facebook profile. Thanks for the information!
Got Error 004:Grid under-voltage. (The grid voltage is below the protective value.)
Thanks for your help and solution!
Loved It!!
Awesome Information! I really liked your new blog on Solar Power in NSW
Hi, this is Irina. Thanks for sharing this information.
Great post by the way.
You made some good points there. Thanks for your research! appreciated.
Perfectly pent written content , regards for selective information .
Thanks for posting the information.
Awesome article, it was exceptionally helpful!
It is a piece of valuable information! thnaks
Write more, that’s all I have to say. Thanks for this posting!
I have read so many articles or reviews on this issue. Liked your support. Thanks
We stumbled over here after researching for the same thing on different websites.
I like what I see so now I am following Solarmatic.
Look forward to looking at your web page again.
Thanks for the information! Appreciated!
Thanks!
Loved It!