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EJ

EJ - Abnormal high pressure or refrigerant overcharged

Daikin · Air Conditioning

What does EJ mean?

System pressure is too high, likely due to too much refrigerant.

Common Causes

  • Overcharged refrigerant
  • Blocked airflow
  • Malfunctioning fan

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure indoor and outdoor unit vents are clear.

  2. 2

    Clean air filters.

  3. 3

    A technician must check refrigerant levels and potentially remove excess refrigerant.

Browse all codes in this manual (79)
Verified technical data. Last updated: April 2026

Related Faults

A0A0 - External protection activeA1A1 - Indoor PCB failureA2A2 - Malfunction of freezing protection
Source: Daikin Air Conditioning
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