9 known error codes for this model

A1 Moderate

Indoor PCB Defective

A3 Easy Fix

Condensate Level Abnormal

A5 Moderate

Freeze-Up / Overheat Protection

A6 Moderate

Indoor Fan Motor Fault

C4 Moderate

Heat Exchanger Temperature Sensor Fault

C9 Easy Fix

Room Temperature Sensor Fault

U0 Moderate

Low Refrigerant Detection

U2 Easy Fix

Power Supply Voltage Abnormal

U4 Moderate

Communication Error Between Indoor and Outdoor Units