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E14

E14 — Low Pressure Switch Abnormality (Reserved)

Haier · Hydro Split & All-in-One Systems

What does E14 mean?

This error indicates that the low pressure switch (LP) has disconnected for 5 seconds, typically due to a very low flow rate in the system.

Common Causes

  • Insufficient water flow through the system.
  • A low water pressure issue.
  • A faulty low pressure switch.
  • Blockage in the water circuit.

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

    Check the water supply pressure and ensure there are no closed valves in the water circuit.

  3. 3

    Wait for at least 30 seconds, then restore power to the unit.

  4. 4

    If the error persists, contact a qualified service technician to inspect the water flow and pressure switch.

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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