As technology advances and the push towards renewable resources intensifies, solar energy has become an increasingly popular choice for homeowners and businesses. As a result, the demand for solar inverters, which convert the direct current (DC) produced by solar panels into alternating current (AC) suitable for use in homes and businesses, has skyrocketed. Among the leading brands of solar inverters is Growatt, renowned for their efficiency and reliability.

However, like any technical equipment, Growatt inverters are not immune to occasional malfunctions. These issues can manifest in the form of error codes displayed on the inverter’s LCD screen. The good news is that with a basic understanding of these codes and some troubleshooting knowledge, many common issues can be resolved without the need for a Houston solar repair specialist. This article will guide you through the process of troubleshooting and understanding error codes for your Growatt Solar Inverter.

Quick Summary

This blog post identifies common error codes on Growatt Solar Inverters and provides troubleshooting solutions to resolve these issues.

The Importance of Understanding Error Codes

Solar inverters like those manufactured by Growatt are designed to monitor system performance continuously. When something goes wrong, the inverter will usually display an error code, which is a diagnostic tool for solar inverter repairs. These error codes help to identify the nature of the problem, so you know what action to take, whether it’s something you can fix yourself or if it’s time to call for professional assistance.

Understanding what each error code means can save you unnecessary stress, time, and money on service calls. It can also help prevent small problems from escalating into more significant, more expensive issues.

Common Growatt Solar Inverter Error Codes

Here is a quick rundown of some common error codes you may encounter with your Growatt Solar Inverter:

  • E001: This error indicates a ground fault, which happens when the inverter detects a leak to the earth. You need to check the connections of the PV system for damages.
  • E002: This code means there is no AC connection to your inverter. Check if your inverter switch is turned on.
  • E003: This error implies a grid fault, which means the voltage and frequency of your inverter do not match the grid. You should seek professional help if you see this error.
  • E008: If you see this error, your inverter is overheating. Ensure the inverter ventilation is not blocked, and there is nothing around the inverter that could be causing it to overheat.
  • E011: This is an error for isolation fault. It usually means there is moisture or dirt on the surface of the inverter. After turning off the PV array and grid, a simple clean might do the trick.

Remember, if you are not comfortable troubleshooting or if you are unsure about any aspect of these error codes, it is best to consult with solar panel replacement professionals.

The Troubleshooting Process

A solar inverter troubleshooting process typically involves the following steps:

  • Identify and note the error code displayed on the inverter’s LCD screen.
  • Refer to the inverter’s manual to understand what the error code means.
  • If the error code indicates a problem you can solve on your own, follow the instructions in the manual to rectify the issue. This can involve cleaning, resetting parameters, or even resetting the inverter itself.
  • If the error code reflects a more severe issue, such as a component failure, seek professional assistance from a solar repair expert.

Regular Maintenance Can Prevent Most Errors

To minimize the occurrence of error codes and the need for troubleshooting, regular maintenance of your solar power system, including the inverter, is crucial. Inspection of the panels for dirt or debris, ensuring adequate ventilation for the inverter, and scheduling periodic professional check-ups are all part of solar panel servicing.

Apart from cleaning and monitoring, you should conduct routine performance checks so that any inconsistency can be detected early. By comparing the electricity produced from the solar panels with the electricity consumption data, you could diagnose a potential issue even before an error code appears.


Growatt is one of the leading brands for solar inverters due to their reliability and efficiency. However, you might encounter some issues or error codes from time to time. With basic understanding of these codes, you can troubleshoot many of these issues yourself. For more complex problems, don’t hesitate to call the professionals at Solar Repair Houston. We are the experts in everything from solar inverter repairs to full solar panel replacements. Don’t let an error code interrupt your renewable energy journey. Stay informed, maintain your system regularly, and ensure a bright and sustainable future!


Save time and $$$ with a no obligation quote from solar specialists in Dallas. It takes just 30 seconds.
Call Now Button