Fault Codes / Gree / P7

GR

Gree P7

High

GMV6 — Incorrect phase sequence or open phase.

Gree P7: Incorrect phase sequence or open phase. This fault noticeably affects operation.

Possible causes

Phases swapped / phase missing.

Check steps

Check all 3 phases; swap 2 phases if needed.

Affected parts

Phasenwächter
Sicherungen
Klemmenblock

Safety note

400V — isolate power.

Source: Gree GMV VRF Service Manual — Fault Code Table

Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.

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