Fujitsu Error Codes

General system communication fault

Indoor unit room temperature sensor (Ta) fault

Indoor unit coil temperature sensor (Tc) fault

Outdoor unit ambient temperature sensor fault

Outdoor unit heat exchanger temperature sensor fault

Compressor discharge line temperature sensor (Td) fault

Suction line temperature sensor (Ts) fault

Indoor-outdoor unit serial communication error

Indoor unit fan motor fault

Wired remote controller - indoor unit communication error

High pressure switch activated

Compressor overcurrent protection

Low pressure switch activated / refrigerant shortage

Outdoor unit PCB (control board) fault

Compressor thermal protection

Outdoor unit fan motor fault

Second indoor unit coil sensor (Tc2) fault

Condensate sensor / float switch activated

Current transformer / power supply fault

Voltage protection (high or low voltage)