CodeRegistry
Brands
  1. Home
  2. Daikin
  3. Air Conditioning
  4. E2
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

E2

E2 - Missing of earth leakage detection core

Daikin · Air Conditioning

What does E2 mean?

The system's earth leakage detection system has an issue, possibly a faulty sensor or connection.

Common Causes

  • Faulty earth leakage sensor
  • Wiring problem
  • Ground fault in the system

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the power to the unit at the breaker.

  2. 2

    Ensure all electrical connections are secure and free from corrosion.

  3. 3

    An electrician or qualified technician must inspect the earth leakage detection system.

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
Open Manual (Page 1)Search more codes in this manual