Error 399 - Heat sink temperature sensor error of Fan2

¿Qué significa 399 ?

The temperature sensor on the heatsink of Fan2 (likely an outdoor unit fan) is reporting an error, which could indicate overheating or a sensor malfunction.

• Faulty temperature sensor
• Fan overheating due to obstruction or malfunction
• Loose sensor connection

Haga clic en los pasos para seguir su progreso.

1. 1

   Power off the outdoor unit and allow it to cool down completely.

2. 2

   Check the heatsink temperature sensor connections for Fan2 for any looseness.

3. 3

   Ensure proper airflow around Fan2; if the issue continues, contact support as the sensor or fan may be faulty.