Yellow LED blinks 6 times — Discharge current too high

What does Yellow LED blinks 6 times mean?

The yellow fault LED lights up for 5 seconds, then blinks 6 times consecutively, after a 3-second off period. This pattern repeats 3 times. This indicates the discharge current from the inverter and PV generator is too high, causing the Sunny Boy to interrupt grid feeding. It will attempt to reconnect after testing. This fault specifically applies to transformerless inverters.

• Discharge current from inverter and PV generator too high.
• PE connection not connected to the inverter.
• Capacity of PV generator relative to ground, type of modules, manner of installation, or weather conditions.

Click steps to track your progress.

1. 1

   Observe if the inverter frequently displays this fault pattern.

2. 2

   If the fault is frequent, notify the installer who installed your PV system to clarify the reasons for the high discharge current.

3. 3

   Your installer will check the PE connection to the inverter.

4. 4

   Contact the SMA Serviceline if the installer cannot resolve the issue.