Inverter fault codes explained

Pick your inverter brand to see what each fault or warning means, what's safe to check, and when to call a pro.

Guides

• Why is my inverter not charging the battery?
• How much should my solar panels produce in winter in South Africa?
• What to do when your inverter shows a fault during load-shedding
• How to read your Sunsynk app
• Inverter overload: what it means
• Is my solar system underperforming?

Questions

Where do these fault code explanations come from?

Each code is paraphrased into plain language from the manufacturer's own manual, which we link on every page.

Can I fix inverter faults myself?

Only simple checks like app settings, restarting with the documented procedure, the DB board breaker and reducing loads. Anything inside the inverter or battery needs a qualified installer.