F13 / Outdoor LED1 flashes 16 times — Lack of refrigerant

What does F13 mean?

The system has detected a low level of refrigerant, which is essential for the air conditioner's cooling and heating cycles.

• Refrigerant leak

Click steps to track your progress.

1. 1

   Turn off the air conditioner at the main power switch or circuit breaker.

2. 2

   Ensure the outdoor unit's coils are clean and free of debris to optimize performance.

3. 3

   Wait for at least 30 seconds, then turn the power back on.

4. 4

   This error often indicates a refrigerant leak; contact a qualified technician to check for leaks and recharge the system.