Too low ambient temperature protection
Inverter compressor drive protection
Low pressure protection of compressor
O (on) X(off) ☆(flash at 2Hz)
Indoor EEPROM malfunction
Communication malfunction between indoor and outdoor units
Indoor fan speed has been out of control
Open or short circuit of T1 temperature sensor
Open or short circuit of T2 temperature sensor
Overcurrent protection (For some units)
Open or short circuit of T4 temperature sensor
Open or short circuit of T3 temperature sensor
Open or short circuit of T5 temperature sensor
Outdoor EEPROM malfunction (For some units)
Outdoor fan speed is out of control
Open or short circuit of T2B temperature sensor (For free-match indoor
units)
Communication error between auto-lifting panel and slim cassette (For
slim cassette with auto-lifting panel)
Auto-lifting panel is faulty (For slim cassette with auto-lifting panel)
Auto-lifting panel is not closed (For slim cassette with auto-lifting panel)
Over voltage or over low voltage protection
Too low ambient temperature protection
Error rotor position protection of compressor
Low pressure protection of compressor
O (on) X(off) ☆(flash at 2Hz)