Fault Codes / Haier / F4

HA

Haier F4

Critical

MRV 5 — Discharge temperature overheat.

Haier F4: Discharge temperature overheat. This fault typically halts operation and needs immediate attention.

Possible causes

Low refrigerant / EXV / discharge sensor.

Check steps

Check charge, EXV & discharge sensor.

Affected parts

Heißgasfühler
Kältemittel

Safety note

Hot discharge side & follow F-Gas.

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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