EC72 — Lack phase failure of outdoor DC fan motor

What does EC72 mean?

This error indicates a phase issue with the outdoor DC fan motor, suggesting a problem with the motor's internal circuitry or power delivery.

• Internal motor winding failure
• Faulty motor controller
• Loose electrical connection within the motor or controller

Click steps to track your progress.

1. 1

   Check all electrical connections related to the DC fan motor.

2. 2

   Perform a power reset by turning off the unit's power for 30 seconds.

3. 3

   If the error code persists, the DC fan motor or its associated control module requires professional inspection and likely replacement.