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E07

EcoFlow Portable Power Station

Severity: Moderate

Source: OnlyErrorCodes.com — Every error code. One place.

EcoFlow E07 — AC Output Over Voltage Protection Fix

What it means

EcoFlow E07 means the inverter's AC output voltage went above the safe limit, so it shut the AC sockets off.
The DC and USB outputs usually keep working.
A genuine over-voltage on a pure-sine inverter is unusual — it's more often a fault triggered by a sharp load change or a damaged cable than a steady-state problem.
But a repeating E07 means the inverter needs looking at.

Affected Models

  • EcoFlow DELTA / DELTA 2 / DELTA Max / DELTA Pro
  • EcoFlow DELTA 2 Max / DELTA 3
  • EcoFlow RIVER 2 Max / RIVER 2 Pro (units with AC output)
  • Pairs with E08 (output under-voltage) — both are AC-output protection trips

Common Causes

  • A connected appliance with a faulty power supply feeding voltage back into the inverter
  • A sudden load dump — a big motor switching off — making the output briefly spike
  • A damaged or wrong-rated AC cable or extension lead
  • Running a 120 V appliance on a 230 V model, or the reverse
  • An internal inverter fault — capacitor, control board — if it repeats

How to Fix It

  1. Switch off the AC output and unplug everything.

    Press the AC button until the AC indicator goes dark, then pull all the AC cables.
    This stops the inverter immediately trying again and re-tripping E07 if the fault is still connected.

  2. Power-cycle the unit.

    Hold the main power button until it shuts down, wait 30 seconds, restart with no AC load attached.

  3. Test the AC side with a tiny load.

    Plug in something small — a phone charger, a small lamp — before anything big.
    If it runs cleanly for ten minutes or more, the inverter is fine and E07 was a one-off transient from a load change.

  4. Check the appliance that was connected.

    If E07 came back the moment you reconnected a specific device, suspect that device's power supply rather than the EcoFlow.
    Test it on a wall socket — a unit that misbehaves on mains power is the problem.

  5. Check for firmware updates.

    Connect via the EcoFlow app over Bluetooth and install any update.
    Some early-firmware false E07 trips have been fixed in updates.

  6. If E07 keeps returning with little or no load, contact EcoFlow.

    A repeating E07 with nothing or only a tiny load connected means the inverter has a real fault.
    Stop using the AC side and contact EcoFlow support.
    Don't open the case — it holds capacitor charge that can hurt you.

Related Error Codes

E08 EcoFlow E08 — AC Output Under-Voltage Protection