Fault Codes / Haier / E20

HA

Haier E20

High

MRV 5 — 4-way reversing valve switching failure.

Haier E20: 4-way reversing valve switching failure. This fault noticeably affects operation.

Possible causes

Valve stuck / coil faulty / no diff. pressure.

Check steps

Check coil (resistance) & observe switching.

Affected parts

4-Wege-Ventil

Safety note

Hot discharge side & follow F-Gas.

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

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