How to reset an inverter overloaded? - PowMr

how to reset an inverter overloaded

Inverters play a crucial role in our daily lives by converting DC (direct current) power into AC (alternating current) power. However, it's not uncommon for inverters to experience overloads, leading to various issues.

In this blog post, we will explore what happens when an inverter is overloaded, how to reset it, what causes overloads, potential damage, and address some frequently asked questions related to inverter overloads.


What Happens If an Inverter Is Overloaded?

When an inverter is overloaded, several consequences may occur:


Inverter shows a red light

The red light on the inverter typically indicates an error or fault condition, which could be triggered by the overload. The specific meaning of the red light can vary depending on the manufacturer and model of the inverter.


Note: The specific meaning of the red light can vary depending on the manufacturer and model of the inverter. Generally, reasons when the inverter shows a red light include:

  1. When it is detected that the input voltage is too low, the inverter will automatically switch to the under-voltage protection state.
  2. When the input voltage is detected to be too high, the inverter will automatically switch to the overvoltage protection state.
  3. The inverter may switch to overcurrent protection state.
  4. The inverter is overloaded, causing the fuse to blow.


Inverter shutdown or tripping

Overloading can trigger built-in safety mechanisms, causing the inverter to shut down or trip. This safeguards the inverter from further damage and protects connected devices.


Reduced efficiency and performance

Overloading the inverter regularly can negatively impact its efficiency and overall performance. It may lead to voltage fluctuations, increased power consumption, and shorter lifespan.


Potential damage to electrical devices

Overloading an inverter can strain connected electrical devices, potentially causing them to malfunction or even suffer permanent damage.


How to reset inverter overload?

Resetting an inverter overload typically involves the following steps:

Disconnect the load

Turn off or disconnect the devices that are connected to the inverter. This will help reduce the load and prevent further damage.


Allow time for cooling

Inverters can become overheated during an overload. Give it some time to cool down before attempting to reset it. The duration will depend on the specific inverter model, but generally, waiting for 10 to 15 minutes should be sufficient.


Locate the reset button or switch

Many inverters have a reset button or switch that allows you to reset them after an overload. Refer to the user manual or manufacturer's documentation to find the specific location of the reset mechanism on your inverter. It could be a button, a switch, or a combination of buttons to press.


Reset the inverter

Once you have located the reset button or switch, press or toggle it according to the manufacturer's instructions. This action will reset the inverter and clear the overload condition.


Reconnect the load

After resetting the inverter, you can reconnect or turn on the devices that were previously connected. Ensure that the combined power consumption of the devices does not exceed the inverter's rated capacity to avoid triggering another overload.


Here is an article describing the conventional method of resetting the inverter for reference. Remember to consult your inverter's user manual or contact the manufacturer for specific instructions, as the process may vary depending on the model and brand.


What Can Cause an Inverter to Overload?

Several factors can contribute to an inverter becoming overloaded:


High-power demand

Connecting power-hungry devices that exceed the inverter's capacity, such as air conditioners, refrigerators, or heavy-duty machinery, can overload the inverter.


Power surge or short circuit

Sudden spikes in power supply or short circuits can lead to an overload condition.

If you connect iductive loads to the inverter, the inverter is possible to be overload when the load power consumption reaches or exceeds the peak power of the inverter.

For the life of the inverter, please regulate the use of the inverter and the surge power of the loads shoud be taken into account.

Particular care is needed when inductive loads are to be connected.


Inadequate wiring or faulty connections

Incorrect wiring, loose connections, or damaged cables can cause electrical resistance and increase the likelihood of overloads.


Inverter undersizing

Choosing an inverter with insufficient power capacity for your intended load can result in frequent overloads.


Will Overloading Damage the Inverter?

While an occasional overload may not immediately harm your inverter, sustained overloading can have detrimental effects in the long term. Excessive heat generation, component stress, and reduced lifespan are some of the risks associated with continuous overloading.

That's why it's crucial to invest in an inverter that offers reliable overload protection. Look no further than PowMr solar inverters! With PowMr, you can enjoy the peace of mind that comes with knowing your system is well-protected.

inverter with full system protections

PowMr solar inverters go above and beyond by providing comprehensive system protection features. In addition to overload protection, they also offer safeguards such as overvoltage protection, undervoltage protection, as well as protection against over-temperature, short circuits, and reverse polarity.

Don't compromise the longevity and efficiency of your solar system. Choose PowMr solar inverters for unparalleled performance and robust protection. Invest in the reliability and durability that your solar power system deserves.


FAQs on Inverter Overloads

Why Does My Inverter Show Overload Without Load?

If your inverter displays an overload indication even without any load connected, it could be due to:

  • Internal fault
    The inverter might be experiencing an internal issue, such as a malfunctioning component or faulty sensor, falsely detecting an overload.
  • Wiring or grounding problem
    Improper wiring or inadequate grounding can cause electrical imbalances, leading to overload indications. Ensure all connections are secure and follow proper installation guidelines.


Does the inverter have a reset button?

How do I reset the inverter? Normally, you follow the manual, press and hold the ON/OFF button of the inverter for 15 seconds, and wait for the charging LED to flash rapidly, and this will reset the inverter.


What causes the inverter to malfunction?

The most common cause of a malfunctioning inverter is not following the steps in the installation instructions, such as not following the user manual recommendations and choosing an inappropriate cable type, gauge or combination of line fuses.


How do I know the inverter is not working?

When the inverter has a continuous sounding alarm, it is possible that the inverter is not working. The reasons for the continuous beeping alarm are overload or a stuck cooling fan. If there is an overload, remove the excess load.



Inverter overloads can be frustrating and potentially damaging. By understanding the causes, consequences, and steps to reset an overloaded inverter, you can effectively troubleshoot and resolve these issues. Remember to prioritize safety, follow the manufacturer's guidelines, and consult a professional if you encounter persistent problems with your inverter.

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