Last updated: 19 November 2025
The Sigenergy recall involves a voluntary replacement of its single-phase SigenStor EC 8.0, 10.0, and 12.0 kW Energy Controllers sold in Australia between 4 March 2025 and 18 November 2025.
The recall follows reports of overheating and damage to AC plugs used in certain installations. While no injuries or property damage have been reported, Sigenergy is taking proactive steps to replace affected components and issue a firmware update to reduce potential fire risks.
This article summarizes the situation based on information published by the Australian Competition and Consumer Commission (ACCC) and the official Sigenergy support page for affected customers.
What Is Being Recalled?
The recall affects the following models:
- Sigenergy SigenStor EC 8.0 kW SP AU
- Sigenergy SigenStor EC 10.0 kW SP AU
- Sigenergy SigenStor EC 12.0 kW SP AU
These are single-phase hybrid inverters (Energy Controllers) used in domestic rooftop solar and battery storage systems.
The issue relates specifically to AC plugs requiring ferrules and crimping. In some cases, these plugs may overheat during operation and become damaged.
Why the Recall Was Announced
According to the ACCC recall notice, Sigenergy found that the quick-connect AC plugs may overheat and become damaged, creating a risk of fire if left unaddressed.
While no property damage, injuries, or deaths have been reported, several overheating incidents have occurred.
Sigenergy has stated publicly that the issue appears to stem from improper terminations made by installers rather than a core product defect, but the company has nonetheless chosen to recall and replace affected inverters voluntarily to ensure customer safety.
How Sigenergy Is Responding
Sigenergy has taken several proactive safety and customer service measures, as detailed on its official AC Plug Replacement Program page:
1. Firmware Updates
- All affected systems connected to the internet have received an automatic firmware update.
- This allows Sigenergy to monitor inverter performance remotely and temporarily limit AC output if overheating is detected.
2. Free Replacement Units
- Every affected inverter will be replaced free of charge with a new model featuring an updated AC plug design that eliminates the risk of improper crimping or connection errors.
3. Extended Warranty
- Customers will receive an additional two-year warranty on the replacement unit as a goodwill measure.
4. Direct Communication
- Affected homeowners will be contacted directly by their retailer or a Sigenergy-authorised service partner to arrange a replacement appointment.
What Homeowners Should Do
If you own a Sigenergy SigenStor 8, 10 or 12 kW single-phase inverter, follow these steps:
- 1. Check your system connection Ensure your inverter is connected to the internet so it can receive any required firmware updates.
- 2. Wait for contact from Sigenergy or your retailer They will schedule the free replacement of your unit.
- 3. Don’t be alarmed by performance limits If your system has been temporarily throttled, it’s a safety precaution until inspection or replacement is complete.
- 4. Keep an eye on communications Sigenergy has set up a dedicated webpage for customers
You can also contact Sigenergy Australia directly via sigenservice.au@sigenergy.
Which Installers and Retailers Are Involved?
According to the ACCC, the affected inverters were sold through the following distributors:
- Tradezone Pty Ltd
- Lawrence & Hanson Group Pty Ltd
- Sustainable Business Energy Solutions Pty Ltd
- Energy Spurt Pty Ltd
If you purchased your Sigenergy system through one of these retailers, you will be contacted for a replacement.
Is This a Safety Recall or a Voluntary Upgrade?
Sigenergy describes this as a voluntary recall and replacement program, carried out in cooperation with regulators.
The company has stated that it is not classifying the issue as a product defect, but rather a preventive design update to reduce the potential for installation error and overheating.
From a consumer perspective, it functions as a safety recall, since affected inverters will be replaced free of charge and monitored via firmware until replacement occurs.
What’s Next for Sigenergy Owners?
For most households, the key takeaway is that Sigenergy is acting responsibly and transparently.
While this incident highlights the challenges of introducing new designs quickly, the company’s voluntary recall, firmware safety measures, and extended warranties demonstrate a commitment to customer safety.
If your inverter is affected, you don’t need to take immediate action beyond checking connectivity and waiting for official contact.
Final Thoughts
This voluntary recall is a reminder of why installer quality, product design, and after-sales support matter in the fast-growing battery and inverter market.
Sigenergy’s decision to replace affected inverters and extend warranties despite no confirmed injuries or property loss shows a proactive stance that other manufacturers should follow.
If you’re considering a solar battery or inverter upgrade, it’s worth exploring proven systems with strong Australian support networks.
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References
- ACCC Product Safety Australia Electrical Safety Recall: Sigenergy SigenStor EC 8.0/10.0/12.0 kW SP AU Energy Controllers (PRA 2025/20703, issued 19 November 2025)
- Sigenergy Official Website AC Plug Replacement Program for End Users
