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26

Faulty AC Relay — AC relay failed during startup

SolarEdge · Inverters

What does 26 mean?

The AC relay, which connects the inverter to the grid, failed during its self-test. The inverter cannot safely connect to the AC power.

Common Causes

  • Internal AC relay failure
  • Electrical issue affecting the relay
  • Manufacturing defect

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Disconnect the inverter from the AC grid.

  2. 2

    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 75)Search more codes in this manual