Pioneer LISAS-B-1403 Service Manual

Troubleshooting120 Electrical Control SystemFor 36K~48K UnitsNO. Malfunction DefrostinglampAlarmlamp Running lamp TimerlampDisplay(digitaltube)1 Communication malfunction between indoorand outdoor units. X X X ☆ E12 Open or short circuit of T1 temperaturesensor X X ☆ X E23 Open or short circuit of T2 temperaturesensor X X ☆ X E34 Open or short circuit of T2B temperaturesensor X X ☆ X E45 Indoor EEPROM malfunction ☆ X X X E76 Indoor fan speed is out of control ☆ ☆ X X E87 Refrigerant Leakage Detection ☆ ☆ O X EC8 Outdoor unit malfunction X ◎ X X Ed9 Full-water malfunction X ☆ X X EE10 Communication malfunction between mainPCB and up-down panel PCB ☆ ☆ ☆ X F011 Up-down panel malfunction ☆ ☆ X ☆ F112 Up-down panel is not closed ☆ ☆ X O F2O (on) X(off) ☆(flash at 5Hz) ◎(flash at 0.5Hz)F0,F1,F2 is only available for super-slim cassette2.3 Outdoor unit malfunctionFor YN012GMFI16RUD and YN018GMFI18RUD:No. Problems Green Red IU display1 standby for normal O X2 Operation normally X O3 IPM malfunction or IGBT over-strong current protection ☆ X P04 Over voltage or too low voltage protection O O P15 Inverter compressor drive error X ☆ P46 Inverter compressor drive error ☆ O P47 Communication malfunction between compressor driver board andoutdoor main board ☆ ☆ P48 Compressor driver board EEPROM malfunction O ☆ E5O（light） X（off） ☆（2.5Hz flash）