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E35

E35 — Four Way Valve Reversing Abnormality

Haier · Hydro Split & All-in-One Systems

What does E35 mean?

This error indicates a problem with the four-way valve failing to reverse correctly, which impacts the unit's ability to switch between heating and cooling modes. If this occurs 3 times in an hour, the failure will be confirmed as unresumable.

Common Causes

  • A faulty four-way valve coil or internal mechanism.
  • Insufficient refrigerant charge or incorrect system pressures.
  • An electrical issue affecting the valve's operation.

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, then restore power.

  3. 3

    Try switching the unit between heating and cooling modes to see if the valve can operate.

  4. 4

    If the error persists or repeats, contact a qualified service technician to inspect the four-way valve and refrigerant system.

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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