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E6

E6 — Compressor start-up fault detected

Daikin · Air Conditioner

What does E6 mean?

This code indicates that the compressor is failing to start correctly. The compressor is essential for cooling and heating.

Common Causes

  • Compressor malfunction
  • Electrical supply issue to the compressor
  • Faulty starting components

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the unit has power by checking the circuit breaker.

  2. 2

    Allow the unit to rest for 10-15 minutes before attempting to restart.

  3. 3

    If the compressor still doesn't start, professional service is required.

Browse all codes in this manual (40)
Verified technical data. Last updated: April 2026

Related Faults

0000 — Normal operationA1A1 — Indoor unit PCB defect detectedA5A5 — High pressure or freeze-up protector activated
Source: Daikin Air Conditioner
Open Manual (Page 31)Search more codes in this manual