How to Reset Your Solar Inverter: A Step-by-Step Troubleshooting Guide

A solar inverter is a crucial component of your solar energy system, converting direct current (DC) from your solar panels into alternating current (AC) for household use. However, solar inverters can sometimes develop issues that require a reset to restore normal operation. Understanding how to safely reset your inverter can save you time, prevent downtime, and maintain efficient energy production.

This comprehensive guide will walk you through common inverter problems, how to reset different inverter brands, and key troubleshooting steps to get your system back up and running.‍

Common Solar Inverter Issues That Require a Reset

Before resetting your solar inverter, determine whether a reset is necessary. Here are common reasons a reset may be required:

No Power Output :The inverter is powered on but not producing electricity
Grid Connection Failure:The inverter is unable to sync with the electrical grid
Overheating Issues: Poor ventilation, hot weather, or faulty cooling can cause automatic shutdowns
Error Codes on Display: Certain error messages indicate system faults requiring a reset.
Inverter Stuck in Standby Mode: The system does not transition to normal operation
Loss of internet connection between Inverter & home modem

‍If your solar power system is experiencing any of these problems, follow the steps below to reset your inverter.

How to Reset Your Solar Inverter (Step-by-Step Guide)

Resetting your solar inverter is straightforward but must be done correctly to prevent damage. Follow these steps:

Step 1: Turn Off the Inverter Safely

Locate the AC mains supply switch and switch it off.
Turn off the DC isolator switch to disconnect power from the solar panels to the inverter.
If your inverter has a breaker switch, ensure it is in the OFF position.

Step 2: Wait for the System to Fully Discharge

Allow 5 to 10 minutes for the inverter’s internal electronic components to power down.
Check the inverter display panel to confirm all indicator lights and messages have cleared.
Inspect your inverter location and ensure it is in a well-ventilated area to avoid temperature-related shutdowns.

Step 3: Restart the Inverter in the Correct Order

Turn on the DC isolator switch first to allow power from the solar array to reach the inverter. This switch will usually be located on the wall next to your solar inverter
Next, turn on the AC mains supply switch to reconnect your inverter to the grid. The AC mains supply switch is typically located inside your meter board.
Monitor the display panel to check if the reset was successful.

Step 4: Check for Error Messages

If the inverter returns to normal operation, your reset was successful.
If error codes persist, further troubleshooting may be required (see below).

How to Reset a Solar Inverter After a Power Outage

If your solar inverter does not automatically restart after a grid power failure, follow these additional steps:

Wait for Grid Voltage to Stabilise
Check Circuit Breakers and Fuses
Repeat the Reset Process
Monitor the system

If issues persist, contact a professional technician for further diagnosis.

Solar Inverter Error Codes & How to Fix Them

Different inverter brands display various error codes. Use the links below to check error messages for your specific inverter model:

Tip: If an error persists after resetting, consult your inverter manual or seek professional assistance. Some inverter alarms indicate serious issues that require immediate attention, while others serve as alerts that the inverter is simply adjusting its operations based on grid conditions. Understanding the distinction between common minor issues and more critical warnings is essential for maintaining your solar system's efficiency. Minor alerts may not require urgent action, but they still play a crucial role in ensuring optimal performance and longevity of your inverter.

Performing a Solar Inverter Health Check

To prevent frequent resets and extend the lifespan of your solar inverter, follow these maintenance tips:

Monitor Inverter Status Weekly – Check the display panel for warning indicators.
Ensure Adequate Ventilation – Avoid placing the inverter in poorly ventilated or hot areas.
Update Firmware Regularly – Check for software updates from the inverter manufacturer.
Inspect Solar Panel Performance – If your inverter frequently shuts down, test your solar array’s energy output.
Schedule Professional Maintenance – Have a qualified solar technician perform an inverter health check.

FAQs About Resetting a Solar Inverter

How do I manually reset my inverter?

Follow the standard reset procedure: Turn off the AC and DC switches, wait 5-10 minutes, and turn them back on in the correct order.

How long does a reset take?

The reset process typically takes 5-10 minutes, depending on your inverter model.

What should I do if resetting doesn’t work?

If the issue persists, contact a professional solar installer.

When to Seek Professional Help for Inverter Issues

If your solar inverter continues to display persistent issues, it’s time to seek expert assistance. Contact a solar technician if:

The inverter frequently shuts down or shows repeated error codes
The power output is abnormal, even after resetting
You notice burning smells or unusual noises from the inverter

‍Contact Solar Water Wind for Expert Inverter Support

If your solar inverter is still experiencing issues, professional support can help restore your system’s performance. Solar Water Wind specialises in inverter troubleshooting, repairs, and maintenance, ensuring your solar energy system operates efficiently.

Our team can assist with:

Inverter resets and troubleshooting
Error code diagnosis for Fronius, Sungrow, SolarEdge, Growatt, and other brands
Grid connection and system performance checks
Preventative maintenance and inverter health checks

For reliable service and expert support, contact Solar Water Wind today 02 4397 3662

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