How do I fix Islanding Detected (40, 2x28, 3P 87/89) on a SolarEdge?

Check the board for tripped breakers and confirm whether there is an area outage. Then: Wait for the automatic reconnection timer after the grid returns.

SolarEdge

Islanding

Islanding Detected (40, 2x28, 3P 87/89)

Anti-islanding protection detected loss of stable grid and shut down. Restarts after the mandated reconnection time.

Common causes

Grid outageTripped breakersRepeated AC disruptions

What to check

STEP 1

Check the board for tripped breakers and confirm whether there is an area outage.

STEP 2

Wait for the automatic reconnection timer after the grid returns.

Escalate if

Persistent islanding trips on a stable grid

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