Warning What does this mean?

Your system is down or running degraded, but this is not an immediate safety danger. Work through the safe steps below.

SolarEdge Inverter Error 2X13: Meaning, Causes & Safe Fix

SW Error is an internal software fault in the inverter. There is no homeowner fix — contact SolarEdge support or your installer.

What should I do first?

Two quick questions — we'll point you to the right starting point.

Is this code still showing on your inverter's display?

What this code means

The inverter has detected an internal software error, shown on the LCD as 'SW Error'. On single-phase inverters with firmware 3.19xx and later it appears as code 2x13; on three-phase inverters with firmware 3.18xx and earlier it appears as 3x2. The inverter stops producing power until the fault is resolved by SolarEdge support or a qualified installer.

What is this downtime costing you?

Rough estimate while your system isn't producing. Adjust the numbers to match your setup.

System size (kW) Peak sun hours / day Electricity rate ($/kWh)

–per day

–per week

–per 30 days

≈ – kWh of lost production per day.

Estimate only — assumes ~80% real-world output vs. nameplate. Actual losses depend on weather, shading, panel direction, and your tariff.

Common causes

An internal inverter software fault (the manual lists no external cause — this is an inverter-internal issue)
A firmware problem requiring manufacturer diagnostics

Safe steps to try

Work top to bottom, ticking off each step as you complete it. 0 of 4 done.

Write down the exact code shown on the inverter display (2x13 or 3x2) and the time it appeared.
Check the SolarEdge monitoring app or portal — the error will be logged there with a timestamp.
Confirm the inverter's ON/OFF switch is in the ON position and your home's solar breaker hasn't tripped (visual check only — do not open anything).
Contact SolarEdge support or your installer with the code and details — this fault has no homeowner fix.

Is your inverter still under warranty?

Before paying for a repair, check — your installer may fix this free.

Brand Year installed

Based on typical standard warranty terms — always confirm with your warranty card or installer paperwork, as terms vary by model, region, and purchase date.

When to call an electrician

Immediately. The official troubleshooting guide lists no homeowner remedy for SW Error — its only instruction is to contact SolarEdge support. Call your installer or SolarEdge support as soon as you see this code.

Frequently asked questions

Can I reset a SolarEdge SW Error myself?

The official troubleshooting guide gives no homeowner reset procedure for this code — it says to contact SolarEdge support. Don't try workarounds from online forums; an internal software fault needs manufacturer diagnostics.

Will my system produce power with this error?

No. The inverter stops feeding power into the grid until the software fault is resolved by support or your installer.

Is SW Error dangerous?

It is an internal electronics fault, not a wiring fault — but you should still never open the inverter or touch internal components. Leave it to SolarEdge support or your installer.

Need a professional?

This fault may need professional diagnosis. Contact a qualified solar electrician in your area.

Sources: meaning and troubleshooting verified against the manufacturer's documentation — Troubleshooting SolarEdge Systems, Addendum (North America) — supplement to SolarEdge Installation Guide v4.0+ (doc footer MAN-01-00332-1.1)