4 Most Common Sunsynk Inverter Problems (Solved)

There are countless different brands and models of inverters. One of them is Sunsynk. It is highly recommended to get yourself a Sunsynk inverter. It will be a wise choice if you are on the market for one. You do need to have an understanding of the common Sunsynk inverter problems. That is the focus of this article.

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What Is The Sunsynk Inverter?

A Sunsynk inverter is one of the many different types of inverters made by Sunsynk. The basic purpose of a Sunsynk inverter is to convert DC power into AC power. One of the common energy sources of the DC power is solar. A Sunsynk inverter is a hybrid inverter so you can expect to enjoy robust performance and a wide range of features.

Sunsynk Inverter Problems

Lots of good things are said about a Sunsynk inverter. For example, a Sunsynk inverter works perfectly for both on grid and off grid scenarios. A Sunsynk inverter is a bidirectional inverter. This means not only does it convert from DC to AC it can also convert AC to DC. Great as all that is, there are some common Sunsynk inverter problems to discuss.

1. Inverter Not Turning On

This is definitely a Sunsynk inverter problem you may experience. This of course is a problem that can be easily diagnosed and addressed. Some of the possible causes of the problem are:

  • Battery could be disconnected from the inverter
  • Battery could be faulty, old or discharged
  • Terminals may be loose or faulty
  • Connections may be in reverse
  • Switch could be faulty
  • Inverter may have been tripped

Troubleshooting Inverter Not Turning On Problem

There are a number of possible causes to check out. Once you have narrowed down everything you can explore the following solutions:

  • Ensure battery and inverter are connected
  • Recharge or replace battery
  • Ensure connections are in correct order
  • Fix or replace switch
  • Reset the inverter

2. Backup Time Is Too Limited

This is yet another common Sunsynk inverter problem. This is when you notice that the inverter only lasts for a limited time. This is typically an indication that something is wrong somewhere. This is a problem that can be caused by:

  • Faulty or old battery
  • Charging system could be faulty
  • Power consumption may be too high
  • Electrolyte level may be too low

Troubleshooting Backup Time Is Too Limited Problem

Once you have conducted the relevant checks it is often easy to figure out the problem. It is essential that you ascertain the root cause lest you worsen everything. Some of the remedies you can use to address the problem are:

  • Fix or replace battery
  • Fix charging system and ensure battery charges properly
  • Get rid of items that may be increasing power consumption unnecessarily
  • Top up the electrolyte level to optimum levels

3. Continuous Alarm Beeping

A number of Sunsynk inverter users often report this problem. This is an issue where the alarm may start beeping and continue to, non-stop. You must figure out the possible causes. Some of the probable causes of the problem are:

  • The inverter may be overloaded
  • Cooling fan may be faulty or stuck
  • Alarm system could be compromised

Troubleshooting Continuous Alarm Beeping Problem

This is a problem that may at times not really be a problem. It could simply be a sign that there is something that needs attention. Thus you must conduct checks to eliminate the possibilities. That way you can be certain whether or not it is an actual problem. Some of the solutions to explore are:

  • Get rid of some items that are causing the overload
  • Fix, clean, or replace the cooling fan
  • Fix the alarm system

4. Inverter Is Too Noisy

Typically your Sunsynk inverter will make some noise. If it becomes too noisy that becomes an issue. This could be caused by:

  • Fan may be dirty
  • Fan may be damaged or loose
  • Fan may be out of alignment

Troubleshooting Inverter Is Too Noisy Problem

This is a fairly easy problem to address. The issue often has to do with the fan. After making some checks you can try out the following:

  • Clean the fan
  • Fix or replace the fan
  • Realign the fan

How To Avoid Sunsynk Inverter Problems

Sunsynk inverter problems can be effectively avoided. You need to put together a framework of things falling under the banner of responsible use. For instance, always inspect your Sunsynk inverter before and after use. Periodically clean it and also store it in clean and appropriate spaces. It is also advisable to do thorough checks from time to time with the aim of replacing worn out components. This also helps to identify parts that may need adjustments or realignments. It is also important to not overuse your Sunsynk inverter. You must always use your Sunsynk inverter as stipulated by the user manual. For example, ensure there is no either less or excessive voltage. When in doubt you must engage skilled professionals for guidance or help. All these aspects will help to avoid Sunsynk inverter problems.

What Is The Lifespan Of A Sunsynk Inverter?

Sunsynk inverters are typically sold in building blocks of 5.2 kW. This means that the storage batteries can store and provide power reaching up to 5.2 kW per hour. Their life cycle reaches up to 6000 cycles.

What Size Inverter Is The Best To Run An Entire Home?

The ideal inverter for entire homes falls between capacities of 756 W and 1000 W. Such an inverter is best suited to handle or protect against short circuits and overloads. Essentially, the higher the capacity of the inverter is the better. Especially if the home’s power demand is lower in comparison.


Generally, a Sunsynk inverter is a good purchase decision. Sunsynk is a notable brand when it comes to hybrid inverters in the world. Thus you can expect to get value for money and overall good performance. You just need to make sure you are privy to the common Sunsynk inverter problems. This will streamline your user experience with a Sunsynk inverter.