L3 - Electrical box temperature too high

What does L3 mean?

• Defect of the fan motor.
• PCB defect.
• Power transistor defect.

Click steps to track your progress.

1. 1

   Ensure the outdoor unit's fan is operating correctly.

2. 2

   Check for adequate ventilation around the electrical box.

3. 3

   If the temperature remains high, a technician must diagnose the fan motor, PCB, or transistor.