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How to Reset an Inverter? [Step-by-Step Guide]


Whenever you want to check your solar inverter is working properly or not, simply check the flashing lights. There are (usually) red, yellow, green lights displayed on the inverter screen:

  • If the green light is ON, then the inverter is in its normal operating condition.
  • If the green light is flashing means the inverter is in initializing phase which is also normal.
  • If red/yellow lights are ON, it means there is a fault.
  • If red/yellow lights are flashing, it means the inverter is going to shut down.

Restoring solar inverter to default settings

To restore the setting to factory default reset, follow the steps:

  • Step #1. Connect the inverter cable to the communication (com) port of the inverter and another USB terminal to the laptop after downloading the software.
  • Step #2. Now “watch power an inverter monitoring” through which your inverter and PC will interface.
  • Step #3. Click on the “login button” and enter the password “administrator”.
  • Step #4. After some time click on the IP-address of the inverter shown in the left dialogue box and your PC will be connected to the inverter (you will enter administrator mode).
  • Step #5. Now to reset the setting go to “device control” click on the “restore to default” option. It will show a warning option you simply have to click on the “restore” button and then press the “yes” button to confirm settings.

This is how your solar inverter will be reset to its default settings.

Resetting solar inverter manually

To reset the solar inverters manually, follow the given steps:

  • Step #1. Turn off the inverter by AC/DC toggle switch behind the inverter.
  • Step #2. Turn off the Solar DC main switch.
  • Step #3. Disconnect the main AC supply for safety purposes.
  • Step #4. Wait approximately for 1-2 mins and repeat it in reverse order.
  • Step #5. Turn the main supply ON.
  • Step #6. Turn on the Solar DC main switch.
  • Step #7. Turn on the inverter by AC/DC toggle switch behind the inverter.

** Important! Make sure the process is completed in this exact order for the inverter NOT to get damaged!

Resetting power inverter manually

For the Power inverter check the green lights on the front of the inverter:

  • Two solid green lights mean the inverter is on and is working.
  • Blinking green light means input voltages are lower than the preset value and the inverter goes on hold for 30 seconds. After that, the inverter will be turned off and the red light will be ON.

To reset the power inverters, follow the given steps:

  • Step #1. Connect the voltmeter to the input of the inverter and set it to DC. It will show the input voltages of the inverter.
  • Step #2. Give the voltage higher than the rated input voltage by the voltage regulator or any other DC voltage source.
  • Step #3. Now turn the power inverter switch off and switch on again and you will get two solid green lights again.

Here is a nice video on how to reset an inverter:

How to Reset an Inverter - Purkeys

Can you reset the inverter from your smartphone?

Yes, inverters can be accessed remotely from anywhere around the world!

You can reset it, monitor the controlled variables like voltages, currents, power, etc. from the smartphones with the help of an (IoT) – Internet of things (integrated module installed in the inverters).

How to reset inverter overload

Overloaded your inverter? No problem. To reset the inverter overload, do the following:

  • Step #1. Switch off the inverter.
  • Step #2. Disconnect the loads by unplugging them from the inverter or by switching off the circuit breaker.
  • Step #3. Check the battery is fully charged and all the connections are firmly connected.
  • Step #4. Switch ON the inverter and press the RESET button.

If the overload error persists then it means there is a problem with the inverter majorly short circuit of an electronic component within the inverter. This ensures that the fault is with the inverter even when there is no load connected.

** Warning! Working with electricity is dangerous and if you are not sure what you are doing, do NOT do anything and consult a professional!

Why did my solar inverter shut down?

Following are the most common causes why your inverter might have stopped working or shut itself down in the first place:

Reason #1. High voltage makes inverter outage.

When power is produced greater than demand the inverter needs to send power back to the grid. For a solar inverter to return the power it must put higher voltages than the grid voltages to force back the power.

As the inverters are limited to 250V  (or 120V in the USA) thus if the grid voltages are high and the inverter is not able to overcome the voltage inverter shuts itself off.

Reason #2. Bad lighting.

The inverter is connected to the solar panel sheets that simply make power by daylight. In the case of sunset, fogs, rainy season, or when there is snow laying on the sun-fueled sheets, the system will not deliver power because the path of light is interrupted therefore there is no power generated and the inverter shuts down.

When there is adequate light to create power, the inverter will start normally. This is a condition that can appear in the colder season, during faint and obscure days.

Reason #3. Grid electricity failure.

Whenever there is a power failure or when the inverters regulator switch or earth leakage switch is off the inverter does not receive power from the grid. Therefore, the inverter shuts down itself for safety precautions.

The inverter stores the energy generated by the panels and continuously measures the voltage and frequency from the grid and adjusts the generated power according to this.

So, when there is a shortfall of the grid electricity the inverter shuts down itself.

Reason #4. High output voltages.

If the inverter shuts down several times this is due to the high output voltages of the inverter. So, the inverter shuts down automatically for safety purposes.

Reason #5. Faulty battery connections.

The connections of a battery and an inverter might have gotten loose or are incorrectly connected.

Reason #6. Eroded battery terminals.

If the inverter is used for a long time the battery terminals may have corroded due to oxidation and carbon release result in the inverter shut down.

Reason #7. Bad battery.

Your inverter may be functioning properly; instead, your battery might have not charged well resulting in the shutdown of the inverter.

Click on the white button above to find your electrician!

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