Fault Codes / Haier / F19

HA

Haier F19

High

MRV 5 — Voltage fluctuation (too high/low).

Haier F19: Voltage fluctuation (too high/low). This fault noticeably affects operation.

Possible causes

Mains voltage unstable / out of range.

Check steps

Measure mains under load, check terminals.

Affected parts

Netzteil-Platine
Sicherungen
Spannungsregler

Safety note

230/400V — caution.

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

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