What does 448 mean?

Fan 1 in the outdoor unit is experiencing a lock error, meaning it is unable to rotate freely or is jammed.

• Fan 1 is physically jammed
• Bearing failure in Fan 1 motor
• Obstruction preventing rotation
• Software or control error locking the fan

Click steps to track your progress.

1. 1

   Turn off power to the unit and manually check if Fan 1 can be rotated freely.

2. 2

   Remove any visible obstructions around Fan 1.

3. 3

   Listen for grinding or resistance noises from the fan motor.

4. 4

   If the fan remains locked, the motor may need replacement.