Error 3 (Binary 0011) — Internal memory error

What does 3 mean?

The Fronius Solar Inverter has detected an error within its internal memory system. This is indicated by LEDs 1, 2, 4, 8, and the State LED all lighting up steady red, with LEDs 1 and 2 specifically illuminated for the binary code.

• Corrupted internal memory
• Faulty memory module

Click steps to track your progress.

1. 1

   Observe the inverter for a few minutes to see if the error clears automatically.

2. 2

   Perform a full AC and DC power cycle of the inverter: Disconnect both AC and DC power, wait 5 minutes, then reconnect.

3. 3

   If the error persists, contact a Fronius-trained service engineer for further assistance.