How do I fix IQ EV Charger 2 — Fault State on a Enphase?

Check the upstream MCB/RCBO feeding the charger has not tripped. Check earth continuity from charger housing to consumer unit earth bar (must be <1Ω) Then: Check phase wiring is correctly connected (L=Brown, N=Blue, PE=Green/Yellow). If RCBO upstream has tripped, identify the cause before resetting

Enphase

EV: Solid Red

IQ EV Charger 2 — Fault State

IQ EV Charger 2 LED bar is solid red — charger has detected a fault and stopped. Check grounding and phase wiring.

Common causes

Earth (PE) fault — charger requires solid earth connectionPhase wiring faultUpstream RCD has trippedInternal charger fault

What to check

STEP 1

Check the upstream MCB/RCBO feeding the charger has not tripped. Check earth continuity from charger housing to consumer unit earth bar (must be <1Ω)

STEP 2

Check phase wiring is correctly connected (L=Brown, N=Blue, PE=Green/Yellow). If RCBO upstream has tripped, identify the cause before resetting

Escalate if

Earth confirmed, MCB set, wiring correct but solid red persists — internal charger fault, escalate to Enphase support

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More Enphase fault codes

ACVOOR

AC Voltage Out of Range

ACFOOR

AC Frequency Out of Range

DC Res Low

DC Resistance Low (Ground Fault / GFDI)

DC Too Low

DC Input Voltage Too Low

DC Too High

DC Input Voltage Too High