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Error 47

SolarEdge Solar Inverter

Severity: Moderate

What Does This Error Mean?

Error 47 on a SolarEdge inverter means no grid is detected at the AC terminals — either the home has lost power, the AC isolator is off, or there is a wiring fault between the panel and inverter. Check breakers and isolators first.

Affected Models

  • SolarEdge SE3000H
  • SolarEdge SE7600H
  • SolarEdge SE10000H
  • SolarEdge SE11400H-US
  • SolarEdge HD-Wave

Common Causes

  • Power outage at the home (no grid available)
  • AC isolator switch off near the inverter
  • Tripped AC breaker in the home electrical panel
  • Damaged AC wiring between panel and inverter
  • Failed AC contactor or rapid shutdown disconnect

How to Fix It

  1. Confirm the home has utility power.

    Check that lights and other appliances work in the home. If the home is in a power outage, Error 47 is correct — the inverter cannot feed back into a dead grid (anti-islanding protection).

  2. Check the AC isolator switch.

    The AC isolator is usually mounted next to the inverter. Confirm it is in the ON position. A switched-off isolator is the leading cause of Error 47 after maintenance work or pest tampering.

  3. Check the inverter breaker in the main panel.

    Find the breaker labelled SOLAR, INVERTER, or PV in your main electrical panel. Confirm it is ON. A tripped breaker is reset by switching fully OFF then ON firmly.

  4. Check rapid shutdown disconnect.

    Some installations include a rapid shutdown switch near the meter. Confirm the switch is in normal/run position, not in the rapid-shutdown position.

  5. Book installer if breakers cannot be reset.

    A breaker that immediately re-trips on switch-on indicates a wiring fault. Do not force reset. Book a qualified installer or electrician — typical service cost USD 150–300 for diagnosis.

Frequently Asked Questions

Will my SolarEdge restart on its own when the grid comes back?

Yes — once grid voltage and frequency return to spec for the reconnection delay (typically 60 seconds, longer in some countries), the inverter resumes automatically. Anti-islanding protection prevents production into a dead grid; reconnection is automatic on grid recovery.

Why can't my SolarEdge keep running during a power outage?

Anti-islanding is required by every grid code worldwide — feeding power into a dead grid is dangerous to utility workers and incompatible with grid restoration. To run during outages, the system needs a SolarEdge battery and a backup interface device that legally islands from the grid. Discuss with your installer.