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112

Wrong AC connection — AC line connections are incorrect

SolarEdge · Inverters

What does 112 mean?

The AC power lines are connected to the wrong terminals on the inverter. This can prevent proper operation and may cause damage.

Common Causes

  • AC lines (L1, L2, L3) are swapped
  • Incorrect wiring during installation

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Switch the connections between L1 and L2, or L2 and L3, as needed.

  2. 2

    Ensure correct AC line connections according to the installation manual.

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