E0 – error code will be displayed when the EEPROM data in the indoor unit is abnormal.
E1 – error code will be displayed when the communication between indoor and outdoor units is abnormal.
E3 – error code will be displayed when there is an abnormal fan speed in the indoor unit.
E4 – error code will be displayed when the indoor room temperature sensor has open circuit or short circuit.
E5 – error code will be displayed when the evaporator coil temperature sensor has open circuit or short circuit.