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SW Error

SW Error — Internal software error

SolarEdge · Inverters

What does SW Error mean?

An error within the inverter's internal software has occurred. This can affect various functions of the inverter.

Common Causes

  • Software glitch
  • Corrupted firmware
  • Unexpected software state

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Try restarting the inverter by turning the ON/OFF switch off and then on again.

  2. 2

    If the fault persists, contact SolarEdge support.

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
Open Manual (Page 71)Search more codes in this manual