Your solar inverter shows an error, let's fix it
Type the code on your inverter's screen or app. We'll tell you what it means, whether it's urgent, and exactly what to do, in plain English.
Six brands fully covered: Deye, Sunsynk, Growatt, Solis, GoodWe and Fox ESS, with every fault code explained.
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How this site helps
1. Find your code. Most inverters show a code like F18 on the display or in the monitoring app (SolarMan). Type it above.
2. See how urgent it is. Every code is rated: Self-clears Check & restart Stop, call a pro
3. Follow the safe steps. Clear, numbered fixes with a decision flowchart, plus an honest "stop here and call an electrician" line whenever safety is on the line.
Helpful guides
Error codes explained What the codes mean, in plain English
How to safely restart your inverter The correct power-cycle order
Inverter not turning on? What to check when it's dead
What is an arc fault? The fire-risk code explained
Inverter overheating? Causes and fixes that work
Find the code in the app SolarMan, SunSynk, ShinePhone, SolisCloud