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E51-0

E51-0 — LEVa Overcurrent Protection

Haier · Hydro Split & All-in-One Systems

What does E51-0 mean?

This error indicates that the LEVa driver chip has detected an overcurrent condition.

Common Causes

  • An electrical overload on the LEVa driver circuit.
  • A fault within the LEVa component.
  • A temporary electrical surge or instability.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the main power to the Haier unit at the circuit breaker.

  2. 2

    Wait for at least 30 seconds.

  3. 3

    Restore power to the unit and observe if the error clears.

  4. 4

    If the error persists, contact a qualified service technician to inspect the LEVa driver circuit and component.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

E01E01 — HU Water Inlet Temperature sensor AbnormalityE02E02 — HU Water Outlet Temperature sensor AbnormalityE03E03 — HU Liquid Pipe Temperature sensor Abnormality
Source: Haier Hydro Split & All-in-One Systems
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