Fault Codes / Gree / Pb

GR

Gree Pb

Critical

GMV6 — Inverter DC bus overvoltage.

Gree Pb: Inverter DC bus overvoltage. This fault typically halts operation and needs immediate attention.

Possible causes

Mains overvoltage / inverter PCB.

Check steps

Measure mains & DC bus, check inverter PCB.

Affected parts

Inverter-PCB

Safety note

High voltage! Let capacitors discharge.

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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