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E5-00

E5-00 — OU: Overheat of inverter compressor motor

Daikin · ASHP Error Codes

What does E5-00 mean?

The compressor motor in the outdoor unit (OU) is overheating.

Common Causes

  • Poor ventilation around the outdoor unit
  • Low refrigerant levels
  • Internal compressor issue

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the outdoor unit has ample space and clear airflow.

  2. 2

    Check for any unusual noises coming from the compressor.

  3. 3

    Power cycle the unit to reset.

  4. 4

    Contact a Daikin service professional immediately.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

7H-017H-01 — Water flow problem7H-047H-04 — Water flow problem during domestic hot water production7H-057H-05 — Water flow problem during heating/sampling
Source: Daikin ASHP Error Codes
Open Manual (Page 2)Search more codes in this manual