Huawei is a global technology giant, renowned for its technological advancements – in telecoms, smartphones, and more recently renewable energy. While it’s a Chinese company that has faced political and security controversies, there’s no denying that Huawei solar inverter technology is industry-leading – for efficiency, affordability, and innovation. Huawei’s solar inverters are well designed, reliable, and packed with smart features. But are you having Huawei inverter problems? We’re here to help!
Do you own a Huawei inverter and you’re struggling to understand the flashing error codes or – worse still – unexpected shutdowns? First, the good news – because some problems can be fixed right here and now with simple troubleshooting. Other problems, however, may require professional solar inverter repair.
In this exclusive guide, we’ll go through the most common Huawei inverter problems – what they mean, and what you should do about them:
Understanding Huawei inverter error codes
Huawei inverters – helpfully – come with an industry-leading self-diagnosis system to detect faults and then display those Huawei inverter fault codes on the unit. You may also find your Huawei inverter problem on your app – but, either way, they’re basically telling you what’s wrong. It could be a minor issue or a serious fault requiring expert intervention. In our guide, we’ll break it all down for you.
There are two main categories of Huawei error codes:
1. Warning codes
These indicate minor issues, such as communication errors or voltage fluctuations, which may resolve on their own or require simple troubleshooting.
2. Fault codes
These point to more serious issues, such as hardware failures, grid faults, or overheating, and often require professional solar servicing.
Now, let’s break down some of the most common Huawei inverter fault codes, including what they mean, and how you can troubleshoot them.
Common Huawei inverter error codes & fixes
1. Error Code 202 –Â Abnormal invert circuit
WHAT IT MEANS: The inverter has detected an issue in its internal conversion circuit, which could be due to external conditions like power surges.
WHAT TO DO:
- Check your DC wiring for loose connections or damaged cables.
- Restart the inverter to see if the issue clears.
Is the error still displaying? Professional solar repair may be needed.
2. Error Code 2032 – Grid Failure
WHAT IT MEANS: The inverter is not detecting a stable grid connection, meaning it won’t be able to export power.
WHAT TO DO:
- Check if there’s a power outage in your area.
- Inspect AC wiring to ensure everything is securely connected.
- If the grid is stable and the error continues, contact a licensed solar electrician.
3. Error Code 2001 – High string input voltage
WHAT IT MEANS: The voltage from your solar panels is exceeding the inverter’s safe limits.
WHAT TO DO:
- Check how many solar panels are connected in series.
- Verify that your system’s total voltage is within the inverter’s limits.
Still unsure? Consult a solar specialist to avoid equipment damage.
4. Error Code 2061 – AFCI Self-Check Failure
WHAT IT MEANS: The Arc Fault Circuit Interrupter (AFCI) isn’t functioning properly, increasing fire risk.
WHAT TO DO:
- Restart the inverter and see if the error clears.
- Inspect DC wiring for signs of burning, melting, or damage.
Problem still there? Call a solar repair specialist – right now!
5. Error Code 401 – Communication Failure
WHAT IT MEANS: The inverter is struggling to communicate with the monitoring system, often causing a Huawei inverter offline status.
WHAT TO DO:
- Check your WiFi or Ethernet connection.
- Restart the monitoring app and the inverter.
Problem continuing? Try resetting the inverter’s network settings and then reconnect.
6. Error Code 3021 – Insulation resistance low
WHAT IT MEANS: The inverter has detected a ground fault, meaning that insulation in the system may be compromised.
WHAT TO DO:
- Inspect cables for wear, water exposure, or damage.
- If you find exposed wires, turn off the system and seek professional help.
- DO NOT attempt to bypass safety mechanisms, as it could be dangerous.
Huawei inverter troubleshooting tips
Still dealing with your Huawei inverter problem? We’ve put together some general troubleshooting steps that you should try – just before you call a solar technician!:
1. Restart the inverter
Many minor issues clear up with a simple restart.
2. Check your connections
Loose cables or faulty wiring are common causes of error messages.
3. Monitor temperature
Inverters can overheat, especially in direct sunlight. Ensure there’s proper ventilation.
4. Inspect for physical damage
Water damage, pests, or corrosion can cause system failures.
5. Check for firmware updates
Sometimes, an inverter may need a software update to function correctly.
If nothing we’ve discussed today work at all, or if the Huawei error code indicates a serious electrical or hardware issue, it’s always advised to call a professional.
Is a Huawei inverter right for you?
Considering a new solar system? It’s only natural to wonder how reliable Huawei inverters are in real life. Based on our user feedback, and expert reviews that we tend to agree with, Huawei offers some of the absolutely best-performing inverters on the market today. A typical Huawei inverter review highlights features such as:
- High efficiency
- Smart monitoring, complete with AI systems to optimise performance
- Hybrid capabilities, integrating battery storage
- Durability, as Huawei inverters package robust weather protection.
But, remember: Huawei inverters may be great, but the key to avoiding those annoying faults is regular monitoring, proper installation, and timely repairs.
When to seek professional help?
One or two Huawei inverter problems here and there can usually be fixed with a bit of basic troubleshooting – while others will definitely require expert intervention! Call Solar Repair Service today if:
- Your inverter displays Huawei inverter fault codes that won’t clear.
- You experience frequent shutdowns, overheating, or electrical burning smells.
- The inverter goes offline repeatedly despite stable WiFi and power connections.
All of these – and others – are obvious signs of trouble, which could have involved corrosion, burnt components, frayed wiring, overheating, and much more.
Get expert Huawei inverter repairs
Will your Huawei inverter offline status not resolve? Struggling with recurring Huawei error codes? Don’t let your system fail completely, because professional service is always the best way to restore your system’s long-term performance.
Here at Solar Repair Service, our experienced and licensed solar electricians specialise in diagnosing and repairing Huawei inverter error codes – quickly and efficiently. We know how important it is to have a reliable solar power system, which is why we’re always right here to help you get yours back on track! We proudly service Brisbane Northside, Brisbane Southside, Sunshine Coast, and Redland Bay, ensuring homeowners and businesses in these areas get expert solar repairs when they need them most.
Call Solar Repair Service for expert troubleshooting, repairs, additional advice, and more.
