Carrier MMY-MAP0964FT9UL - Page 137

– 137 –
Light block Check code Cause of fault
F02 Heat exchanger temperature sensor (TC2) error
F05 Discharge temperature sensor (TD2) error
F06 Heat exchanger temperature sensor (TE1, TE2) error
H02 Compressor lockup Outdoor unit compressor-related errors
Protective shutdown of outdoor unit
F07 Liquid temperature sensor (TL) error Outdoor unit temperature sensor errors
Outdoor unit pressure sensor errors
F08 Outside air temperature sensor (TO) error
F12 Suction temperature sensor (TS1) error
F13 Heat sink sensor (TH) error
H03 Current detection circuit error
F15
Wiring error in heat exchanger sensor (TE1) and liquid temperature sensor (TL)
Outdoor unit temperature sensor wiring/installation error
F16
Wiring error in outdoor high pressure sensor (Pd) and low pressure sensor (Ps)
Outdoor pressure sensor wiring error
H05 Wiring/installation error or detachment of outdoor discharge temperature sensor (TD1)
F22 Outdoor discharge temperature sensor (TD3) error
F23 Low pressure sensor (Ps) error
F24 High pressure sensor (Pd) error
H06 Abnormal drop in low-pressure sensor (Ps) reading
H07 Abnormal drop in oil level
H08 Error in temperature sensor for oil level detection circuit (TK1, TK2, TK3, TK4 or TK5)
H15 Wiring/installation error or detachment of outdoor discharge temperature sensor (TD2)
H16 Oil level detection circuit error - Error in outdoor unit TK1, TK2, TK3, TK4 or TK5 circuit
L03 Duplicated indoor group header unit
L05 Duplicated priority indoor unit (as displayed on priority indoor unit)
L06 Duplicated priority indoor unit (as displayed on indoor unit other than priority indoor unit)
L07 Connection of group control cable to stand-alone indoor unit
L08 Indoor group address not set
L09 Indoor capacity not set
H25 Wiring/installation error or detachment of outdoor discharge temperature sensor (TD3)
F10 Ambient temperature sensor (TA) error
F03 Heat exchanger temperature sensor (TC1) error Indoor unit temperature sensor errors
F01 Heat exchanger temperature sensor (TCJ) error
Timer Ready Operation
Alternate blinking
F04 Discharge temperature sensor (TD1) error
Timer Ready Operation
Alternate blinking
L02 Outdoor unit model unmatched error
Timer Ready Operation
Synchronized blinking
L10 Outdoor capacity not set
L17 Outdoor model incompatibility error
L18 Flow selector units error
L20 Duplicated central control address
L28 Too many outdoor units connected
L29 Error in number of IPDUs
L30 Indoor external interlock error
L04 Duplicated outdoor refrigerant line address
Timer Ready Operation
Synchronized blinking
H01 Compressor breakdown
Timer Ready Operation
Blinking
F29 Fault in indoor EEPROM
Timer Ready Operation
Synchronized blinking
F31 Outdoor EEPROM error
Timer Ready Operation
Synchronized blinking