Fault code 16 — Overload protection in cooling mode

What does 16 mean?

The unit is in overload protection during cooling mode. This can be caused by too much refrigerant, high outdoor temperatures, blocked airflow, a dirty condenser, or a faulty fan or expansion valve.

• The refrigerant is excessive
• The outdoor ambient temperature is too high
• Short-circuit occurs in the air outlet and air inlet of the outdoor unit
• The condenser coil is dirty
• The speed of the outdoor fan motor is too low
• The outdoor fan is broken or the outdoor fan is blocked
• The air inlet and outlet have been blocked
• The expansion valve fails

Click steps to track your progress.

1. 1

   Clean the condenser coil.

2. 2

   Remove any obstacles blocking the air inlet or outlet.

3. 3

   Check the outdoor fan motor and its capacitor.

4. 4

   If the problem persists, consider checking the refrigerant levels and the expansion valve.