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Red LED on

Red LED on — Fault detected

SolarEdge · Inverters

What does Red LED on mean?

The red LED is lit solid, indicating that there is an error or fault within the inverter. You need to check the LCD panel for specific error details.

Common Causes

  • An error condition exists
  • System fault detected

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the inverter's LCD panel for specific error messages or codes.

  2. 2

    Refer to the 'Errors and Troubleshooting' section on page 66 for details on the displayed error.

  3. 3

    If an error is shown, follow the recommended troubleshooting steps for that specific error.

Browse all codes in this manual (51)
Verified technical data. Last updated: April 2026

Related Faults

10, 37, 38Ground Current - RCD — High ground currents detected102DC Voltage Too High — Input DC voltage exceeds maximum level103, 119UDC Min / DC Voltage Too Low — Input DC voltage below minimum level
Source: SolarEdge Inverters
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