EV Chargers
Sigenergy EV Chargers Repairs Perth
We provide independent fault diagnosis, maintenance and repair services for Sigenergy EV chargers and integrated energy ecosystems across the Perth metropolitan area.
- Electrical Licence EC8323
- CEC Approved Solar Retailer
- Accredited Installer SW7097859
- Fully Insured
- 5-Year Workmanship Warranty
- Established 1997
Overview
Sigenergy EV Charger Repairs in Perth
Sigenergy EV chargers are designed to work within a broader home energy ecosystem, integrating with compatible solar panels and battery storage. Like all advanced power electronics, they require proper maintenance and occasional repair to keep functioning safely in Western Australian conditions. Our technicians help you keep your charging setup operating reliably over the long term.
Servicing the Sigenergy product range
The Sigenergy lineup includes both standard alternating current units and high capacity direct current modules designed to integrate with solar generation. We service the Sigen AC units in both 7kW and 22kW configurations, as well as the larger SigenStor DC Charging Module at 25kW. Because these chargers often operate alongside battery storage like the LG Chem RESU 6.5LV, RESU10H or RESU LV 3.3-9.8, diagnosing a fault requires looking at the entire energy management system. Our technicians test the charger, the communications link to your battery and the connection to your solar inverter to pinpoint exactly where the issue lies.

Common charging faults and warning signs
A modern EV charger handles significant electrical loads for hours at a time. If a fault develops, the system will usually shut down to protect your vehicle and your home. Warning signs include the charger failing to initiate a session when the cable is plugged in, intermittent charging dropouts or the management app showing connection errors. You might also notice the charger failing to switch modes, such as not directing excess daytime solar to the car despite sunny weather. When these symptoms appear, it is important to have the system inspected rather than repeatedly trying to reset the unit.
- Failure to detect the plugged in vehicle
- Intermittent charging dropouts
- Loss of communication with the energy management app
- Inability to utilise excess solar generation

The impact of Perth weather on EV chargers
Perth experiences intense summer heat, high UV levels and dusty easterly winds. Even though outdoor chargers are built to withstand the elements, extreme temperatures put significant stress on the internal power electronics and thermal management components. Heat degrades capacitors and circuitry over time, which can lead to premature failure if the charger is mounted in direct afternoon sun. Coastal areas face the added challenge of salt laden air, which accelerates corrosion on exposed terminals and cabling. Regular inspection helps identify UV damage to cables and thermal stress inside the enclosure before they cause a complete system failure.

When to repair and when to replace
Deciding whether to fix a faulty EV charger or replace it depends on the age of the unit and the nature of the failure. Minor issues like a damaged charging cable, software glitches or faulty external isolator switches are straightforward to resolve and make repair the most economical choice. However, if the main internal circuitry of a 7kW or 22kW Sigen AC unit has suffered severe heat damage or moisture ingress, the cost of parts and labour can approach the price of a new installation. We assess the condition of your equipment and provide a clear breakdown of repair costs versus replacement options.
FAQs
Common questions
Why has my Sigenergy charger stopped communicating with my solar panels?
Communication dropouts are often caused by issues with the home Wi-Fi network, a software glitch in the energy management system or a fault in the data cable linking the charger to the inverter. We can test the communication pathways to restore the connection.
Can a damaged charging cable on a Sigen AC unit be replaced?
Yes. If the cable or the plug has been damaged by being dropped, run over or exposed to extreme UV, it is a safety hazard and must not be used. We can safely replace the cable assembly without needing to replace the entire charging unit.
Why is my SigenStor 25kW DC module getting so hot?
High capacity direct current chargers naturally generate heat during operation. However, if the unit is unusually hot to the touch or shuts down mid charge, the internal cooling mechanisms or vents may be blocked by dust or insects. This requires professional cleaning and testing.
Do you service the LG Chem batteries connected to my charger?
Yes, we service the connected battery systems. If your Sigenergy charger is integrated with an LG Chem RESU 6.5LV, RESU10H or RESU LV 3.3-9.8 battery, we can diagnose integration faults to ensure your excess solar is being managed correctly.
How often should an EV charger be inspected?
We recommend a visual check of the cables and plugs every few weeks. A professional inspection of the internal components, electrical connections and external isolators should ideally be performed every year to catch early signs of heat stress or corrosion.
Reviews
What Perth customers say
Need this looked at?
Tell us what the system is doing. We will inspect it, identify the cause, and put the fix in writing.
Solar Repairs · 15 Delawney Street, Balcatta WA 6021 · 1300 555 274 · Electrical Licence EC8323 · Plumbing Licence PL6817

