Fault Codes / Haier / E12

HA

Haier E12

Medium

MRV 5 — Outdoor EEPROM error.

Haier E12: Outdoor EEPROM error. This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

EEPROM/outdoor PCB faulty.

Check steps

Power reset; replace outdoor PCB if needed.

Affected parts

Außen-PCB

Safety note

230/400V — isolate power.

Source: Haier H-MRV / MRV5 Service Manual — Error Code Table

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

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