F16 — Total running current protection (Outdoor unit)

What does F16 mean?

The outdoor unit's total running current has exceeded a safe limit, activating its protection mechanism. This occurs if the high current condition repeats 3 times within 20 minutes, causing the OFF/ON control panel LED to blink.

• Excess refrigerant in the system.
• Defective outdoor PCB (Printed Circuit Board).

Click steps to track your progress.

1. 1

   Turn off the power supply to the unit at the main breaker for at least 5 minutes, then restore power.

2. 2

   Monitor the unit for any reappearance of the error code after restarting.

3. 3

   If the error persists, contact a qualified technician to check refrigerant levels and inspect the outdoor PCB.