How To Reset Inverter Overload | Learn the Ways To Prevent Annoying Shutdowns

Are you tired of your inverter constantly shutting down due to overloading? An inverter overload can be frustrating, especially if you’re in a critical task requiring a continuous power supply.

Key Takeaways

  • Inverter overload happens due to various factors, including low battery voltage, short circuits, inadequate wiring, high inrush current, user error, and a faulty inverter.
  • Resetting an inverter after overloading is a simple process that can save you from frustration.
  • You can prevent inverter overloads by connecting only the needed appliances, installing surge protectors on the inverter and appliances, ensuring correct wiring, checking the battery regularly, and connecting high-starting power appliances directly to the mains.
  • If you’re uncomfortable resetting the inverter or conducting tests, seek professional help to avoid damaging the inverter or connected appliances. 

Luckily, resetting the inverter is a simple process that can get your system back up and running in no time. This guide looks at how to reset inverter overload. It will also explore common causes of inverter faults and how to fix them, conduct tests, prevent future overloads, and restore your solar inverter to default settings. Say goodbye to the frustration of overloads and keep your appliances safe and sound. 

power inverter display closeup

How to Reset Inverter Overload

When your heavily overloaded inverter system is struggling to keep up with the demands of your devices and appliances, resetting it manually can be a relatively uncomplicated and direct procedure. 

Start by diligently identifying the conspicuous reset button on the inverter, which is usually prominently situated on the easily accessible front panel. If you have difficulty locating the button, check the manufacturer’s manual. Now press and hold it until the inverter completely shuts down. Wait for a few minutes before proceeding to restart the inverter system.

Is There a Reset Button on an Inverter?

Certainly, the vast majority of modern power inverters come with a reset button. Nevertheless, older models do not have this feature. If your inverter lacks a reset button, you need to check the manufacturer’s manual for specific instructions for resetting your particular inverter.

a person pressing the button on the power inverter

What Happens if an Inverter is Overloaded?

When an inverter is overloaded, it will automatically shut down to protect itself from damage. Sometimes, it may not turn back on even after the appliances are disconnected. In such a scenario, you need to reset the inverter manually.

How Does an Inverter Overload Occur after Lighting?

Lighting can cause voltage fluctuations that may overload your inverter. Sometimes, it may cause an electrical power surge that damages the inverter or connected appliances. Please consider installing surge protectors on the inverter and devices to prevent this.

a person testing the inverter

6 Common Causes of Inverter Overload and Their Fixes

Inverter overloads are often caused by various factors, from electrical faults to user errors. Here are six other typical causes of inverter overload and their respective fixes:

Low Battery Voltage

Low battery voltage is one of the leading causes of inverter overload. A low battery voltage can occur for several reasons, including aging batteries, overuse, or a faulty battery charger. You can fix this issue by replacing the batteries or the battery charger. Ensure that you choose batteries that match the inverter’s power rating and that the charger is compatible with the battery type.

Short Circuit

For a short circuit to occur, a wire or component in the inverter circuit must come into contact with the wrong wire or component. That results in a high current flow, causing the inverter to overload. To fix this issue, locate and repair the short circuit, and ensure all the wire gauges are correct and that all the wires are connected properly.

Faulty Wiring

Faulty wiring can also cause an inverter overload. That is usually the case when the wires are too small, too long, or the wrong type. To fix this issue, replace every inverter cable wire with the correct size and type that match the inverter’s power rating.

High Inrush Current

Some appliances, such as air conditioners and refrigerators, require a high inrush current during start-up. That can cause the inverter to overload if it’s not designed to handle too much power. To fix this issue, consider connecting the appliances directly to the mains, or use an inverter designed to handle excessive power.

Overload Due to User Error

Inverter overload can also occur due to user error. For instance, it can overload if you connect too many appliances or power tools that consume more power than the inverter can handle. To fix this issue, disconnect or replace some devices with lower-power-consuming alternatives immediately after an inverter displays a message to indicate overload.

Overloading from a Faulty Inverter

If the power inverter is not functioning correctly, it can draw too much current, causing it to overload. To fix this issue, you must identify and replace the faulty component. If you need help identifying the defective component, seek professional help.

inverter in testing process

Inverter Test: How to Test That the Inverter Is Not the Source of the Overload

Before resetting the malfunctioning inverter, you need to conduct a comprehensive diagnostic test. Systematically disconnect all electrical appliances from the erratic inverter and turn it on. 

If the inverter works flawlessly when no load is connected, the problem is most likely due to an appliance overload.

However, if the inverter doesn’t turn on, it may be faulty and needs immediate repair or replacement.

Appliance Test: How to Test That Appliances Are Not the Source of the Overload

After conducting the inverter test, you need to run an appliance test to determine which appliance is causing the overload. 

Connect each appliance one at a time and turn it on. If the inverter overloads when a particular device is connected, that appliance is most likely the source of the problem.

Restoring Solar Inverter to Default Settings

If you have a solar inverter causing an overload, restoring it to default settings can help fix the issue. To restore the inverter, refer to the manufacturer’s manual for instructions. The process usually involves pressing and holding a specific button in the solar panel disconnect system until the inverter resets to default settings.

Preventing Inverter Overloads

You can prevent inverter overloads by taking the following measures:

  • Connect only the needed appliances and ensure they don’t exceed the inverter’s power rating.
  • Install circuit breakers on modern inverters and machines to protect them from electrical surges.
  • Ensure that the wiring is done correctly and is of the correct gauge.
  • Regularly check the battery and clean the battery terminals to prevent dirt and corrosion.
  • If your appliances require a high starting power, consider connecting them directly to the AC power supply.

Resetting a tripped inverter after an unexpected overload is a straightforward, hassle-free process that can save you much frustration. Before resetting the inverter, you need to conduct a thorough inverter and appliance test to determine the root cause of the overload. Taking proactive and preventive measures can effectively help you avoid future inverter overloads. If the recurring overload error persists, we recommend you seek professional technical assistance to prevent damaging the connected electrical appliances.

Power inverter isolated on the white background


How Do I Reset an Inverter After It Overloads?

To reset an inverter after an overload, you must turn off the inverter and disconnect all appliances. Then, wait 5-10 minutes before turning the inverter back on. If the inverter still shows an overload after restarting, you may need to check the inverter and connected appliances for faults.

What Should I Do if My Inverter Is Constantly Overloading?

If your inverter is constantly overloading, you should check for possible causes. These may include low battery voltage, inadequate wiring, or an error on your part. You may also need professional help to identify and fix the fault.

Can Overloading Damage My Inverter or Connected Appliances?

Yes, overloading can damage both the inverter and connected appliances. Overloading can cause excessive heat and high current flow, leading to electrical faults, component damage, and fire hazards. Therefore, it’s essential to prevent overloading and conduct regular maintenance to avoid costly damages.

How Can I Prevent Inverter Overloads?

To avoid overloads of a modern inverter, you should connect only the necessary appliances. Also, ensure proper wiring, use surge protectors on the inverter and devices, and check the battery voltage regularly. You should avoid connecting appliances that consume more power than the inverter’s rating. Also, consider connecting high-starting power appliances directly to the mains.

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