Trane THP05 User Manual page 16

Alarm code
Alarm code
AL06 Modbus communication fault of supply fan 3
AL07 Modbus communication fault of supply fan 2
AL08 Modbus communication fault of supply fan 1
AL16 Modbus communication fault of OD fan 2, circuit 2
AL17 Modbus communication fault of OD fan 1, circuit 2
AL18 Modbus communication fault of OD fan 2, circuit 1
AL19 Modbus communication fault of OD fan 1, circuit 1
AL28 Compressor high discharge temperature, circuit 2
AL29 Compressor high discharge temperature, circuit 1
AL36 Auxiliary heat (thermostat) fault
AL39 Internal alarm of supply Fan 3
AL40 Internal alarm of supply Fan 2
AL41 Internal alarm of supply Fan 1
AL42 Outdoor fan fault, circuit 2
AL43 Outdoor fan fault, circuit 1
AL44 EXV driver not ready
AL45 Low differential pressure, circuit 2
AL46 Low differential pressure, circuit 1
AL47 Low suction pressure, circuit 2
AL48 Low suction pressure, circuit 1
AL51 Compressor fault, circuit 2
AL52 Compressor fault, circuit 2
AL53 Compressor fault, circuit 1
AL54 Compressor fault, circuit 1
AL55 High pressure cut-out, circuit 2
AL56 High pressure cut-out, circuit 1
AL57 Compressor phase inversion detected
AL58 FireStat signal
AL59 Gas burner fault
AL60 Smoke detector input fault
AL61 Emergency stop signal
AL62 Compressor high discharge temperature, circuit 2
AL63 Compressor high discharge temperature, circuit 1
AL64 Compressor involute pressure difference, circuit 2
AL65 Compressor involute pressure difference, circuit 1
AL67 Mechanical overloads on outdoor air damper
AL68 Low superheat, circuit 2
AL69 Low superheat, circuit 1
AL70 Low suction pressure, circuit 2
AL71 Low suction pressure, circuit 1
AL72 Compressor fault, circuit 2
AL73 Compressor fault, circuit 2
AL74 Compressor fault, circuit 1
AL75 Compressor fault, circuit 1
Note