ENTHALIO

Fault Codes / Haier / 64

HA

Haier 64

Critical

MRV5 IIS (Digitalanzeige-Code) — CT current too low or current sensor failure at the compressor.

Haier 64: CT current too low or current sensor failure at the compressor. This fault typically halts operation and needs immediate attention.

Possible causes

Check steps

Affected parts

Safety note

Discharge capacitors, isolate power.

Source: Haier Service Manual MRV5 IIS Mini-Außengeräte (SYJS-06-2021 REV.A), §17 Failure Code — Inverter Outdoor Unit Failure Code table, p.57ff

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

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