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447

Error 447 - Motor wire of Fan1 is not connected

Samsung · Home Automation

What does 447 mean?

The motor wire for Fan1 (typically an outdoor unit fan) is either disconnected or has a poor connection, preventing the fan from operating.

Common Causes

  • Loose wiring connection at the motor or control board
  • Incorrect wiring during installation
  • Damaged connector

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Power off the unit at the main breaker.

  2. 2

    Carefully inspect the motor wire connections for Fan1 at both the fan and the control board.

  3. 3

    Ensure all wires are securely attached to their terminals; re-connect any loose or detached wires.

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

Related Faults

101Error 101 - Indoor unit communication error102Error 102 - Indoor/Outdoor unit communication error108Error 108 - Repeated address setting
Source: Samsung Home Automation
Open Manual (Page 24)Search more codes in this manual