GoodWe: System not producing power or showing a fault

GoodWe: System not producing power or showing a fault

If your GoodWe system has stopped generating power, is producing less than expected, or is showing an alarm, the steps below will help you identify the most common causes. Please don't attempt any repairs inside the inverter, battery, or switchboard — solar equipment carries dangerous voltages.

Step 1 — Check for a power outage or grid issue

GoodWe inverters automatically shut down during a grid outage for safety and restart once power is restored. If your area has had an outage or storm recently, allow 10–20 minutes for the system to come back online before investigating further.

Step 2 — Check the SEMS+ app

Open the SEMS+ app and go to the Alarms section. If there is an active fault, the app will show a fault code and description. Take a screenshot or note the exact code — this is the most useful information you can give us when you call or email.

Also check the live production figure on the home screen. If it's showing 0 kW during daylight hours, or significantly below a typical day, that confirms the system isn't generating as expected.

Step 3 — Check the indicator lights

Look at the indicator on the inverter and the battery unit. If anything looks unusual, note what you see. See our guide: Understanding your GoodWe indicator lights.

Step 4 — Check your switchboard

Check whether any solar or battery circuit breakers have tripped to the off position. If a breaker has tripped, do not keep switching it back on — if it trips again, that points to a fault that needs a technician.

Step 5 — Restart the system (only if safe and you're comfortable)

If no breakers have tripped and the app shows no active faults but the system still isn't running, a restart may resolve it. See our guide: How to power off and restart your GoodWe system.

When to contact us

Get in touch if the system stays off after a restart, an alarm code doesn't clear, production is consistently lower than expected, or a breaker keeps tripping.

Contact us immediately if you notice smoke, sparks, a burning smell, or signs of overheating. Do not attempt a restart in this case.

Email service@brightearthsolar.com.au with your name, address, system model, and the alarm code or fault description from the app.