Solar Inverter Repair
GoodWe Inverters Repairs Perth
We diagnose, service and repair GoodWe solar inverters across Perth, helping you get your solar energy system back online safely.
- Electrical Licence EC8323
- CEC Approved Solar Retailer
- Accredited Installer SW7097859
- Fully Insured
- 5-Year Workmanship Warranty
- Established 1997
Overview
GoodWe Inverter Repairs & Servicing in Perth
GoodWe inverters are a common sight in Australian homes, offering standard grid-connected and battery-ready hybrid setups. Like all electronic equipment exposed to Perth conditions, they require occasional maintenance and troubleshooting. If your system has stopped generating power or is reporting an error, our local repair services can help identify the fault and recommend the most practical solution.
GoodWe inverters we service in Perth
GoodWe manufactures a broad range of residential and commercial inverters, from standard grid-tied units to hybrid models designed for future battery integration. We service common models installed across Perth roofs, including the GoodWe DNS, MS and ET series. These units utilise Advanced Maximum Power Point Tracking (MPPT) to adjust to changing sunlight. If your unit drops offline or displays a warning light, we can test the internal components and external wiring to isolate the issue. Often, a drop in conversion efficiency points to a problem with the DC isolators rather than the inverter itself, but a thorough diagnostic check will confirm exactly what is needed to restore your solar generation.

Common warning signs and system faults
Homeowners usually notice a problem when their electricity bill spikes or the inverter display shows an unexpected red light. Because GoodWe systems use the SEMS platform for intelligent monitoring, you might also receive a notification on your smartphone or computer showing that solar generation has stopped. Common issues include degradation of capacitors due to sustained heat, grid voltage fluctuations causing the inverter to trip, or moisture ingress from heavy winter rain. Western Australian coastal areas also expose equipment to salt air, which can accelerate wear on external switches and connections. Regularly checking your SEMS app is the best way to catch these performance drops early.

Should you repair or replace your GoodWe inverter?
When a GoodWe inverter fails, deciding between a repair and a full replacement depends on the nature of the fault and the age of the unit. Minor issues like a faulty AC breaker, degraded DC isolators or loose connections can be repaired cost-effectively, leaving the main inverter intact. However, if the main internal board has failed after years of enduring the harsh Perth summer heat, replacement is usually the better financial choice. Upgrading also provides an opportunity to install a hybrid or battery-compatible configuration. This flexibility makes it easier to expand your solar system in the future, allowing you to add battery storage when you decide the time is right.

Troubleshooting GoodWe battery setups
Many GoodWe inverters are paired with residential energy storage units to capture excess solar energy for use during peak evening hours. We service systems integrated with batteries such as the LG Chem RESU range, including the RESU 6.5LV, RESU10H-Type C, RESU10H-Type R and RESU LV 3.3-9.8 models. A common issue with these setups is a failure in communication between the inverter and the 48V lithium-ion battery management system. If your GoodWe unit is no longer charging the battery or fails to draw power after the sun goes down, we can run diagnostic tests on both the inverter and the battery connections to find the communication breakdown.
FAQs
Common questions
Why is my GoodWe inverter showing a red fault light?
A red light indicates a system error. It could be a grid fault, an issue with the solar panels or an internal hardware failure. First, check your SEMS platform app to see if a specific error is listed. If the system does not reset after a safe shutdown and restart, a technician will need to test the components.
How can I check if my GoodWe inverter is working properly?
The easiest way to monitor performance is through the SEMS monitoring platform via your computer or smartphone app. This gives you access to real-time system performance, solar generation and energy consumption. If the app shows zero generation during daylight hours, or if the screen on the unit is blank, there is likely a fault requiring professional attention.
Can you fix my inverter if it stops communicating with my LG Chem battery?
Yes, we can troubleshoot communication issues between GoodWe hybrid inverters and batteries like the LG Chem RESU 6.5LV or RESU10H series. Often, the issue lies in the data cables, software settings or the battery management system rather than a complete failure of the hardware. We test the entire circuit to pinpoint the exact cause.
Does the Perth heat affect how long my inverter will last?
Yes, sustained high temperatures can degrade electronic components over time, particularly capacitors. While GoodWe inverters are built to withstand Australian conditions, units installed in direct afternoon sun will typically work harder to keep cool, potentially shortening their operational life. We always check for heat-related wear during a standard service visit.
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

