Toshiba MMU-UP0071MH-UL Service Manual page 96

Light block Check code
Operation Timer Ready
Alternate blinking
Operation Timer Ready
Alternate blinking
Operation Timer Ready
Alternate blinking
Operation Timer Ready
Synchronized blinking
P03 Outdoor discharge (TD1) temperature trouble
P04 Activation of outdoor high-pressure SW
Open phase / power failure
P05 Inverter DC voltage (Vdc) trouble
MG-CTT trouble
Outdoor heat sink overheating trouble - Poor cooling of electrical component (IGBT) of
P07
outdoor unit
P15 Gas leak detection - insufficient refrigerant charging
P17 Outdoor discharge (TD2) temperature trouble
P18
Outdoor discharge (TD3) temperature trouble
P19 Outdoor 4-way valve reversing trouble
P20 Activation of high-pressure protection
P22 Outdoor fan P.C. board trouble
P25 Compressor P.C. board trouble.
Compressor trouble / Wire connection trouble.
P26
Compressor leads trouble.
Compressor P.C. board trouble.
P29 Compressor position detection circuit trouble
P31
Shutdown of other indoor unit in group due to trouble (group follower unit trouble)
F01 Heat exchanger temperature sensor (TCJ) trouble
Heat exchanger temperature sensor (TC2) trouble
F02
F03 Heat exchanger temperature sensor (TC1) trouble
Ambient temperature sensor (TA/TSA) trouble
F10
F11 Discharge temperature sensor (TF) trouble
Discharge temperature sensor (TD1) trouble
F04
F05 Discharge temperature sensor (TD2) trouble
Heat exchanger temperature sensor (TE1, TE2, TE3) trouble
F06
F07 Liquid temperature sensor (TL1, TL2, TL3) trouble
Outside air temperature sensor (TO) trouble
F08
Heat exchanger gas side temperature sensor (TG1, TG2, TG3)
F09
trouble
Suction temperature sensor (TS1, TS2, TS3) trouble
F12
Heat sink sensor (TH) trouble
F13
Wiring trouble in heat exchanger sensor (TE1) and liquid temperature sensor (TL)
F15
Outdoor unit temperature sensor wiring / installation trouble
Wiring trouble in outdoor high pressure sensor (Pd) and low pressure sensor (Ps)
F16
Outdoor pressure sensor wiring trouble
Low pressure sensor (Ps) trouble
F23
F24 High pressure sensor (Pd) trouble
F29 Trouble in indoor EEPROM
Cause of trouble
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Indoor unit temperature
sensor trouble
Outdoor unit temperature
sensor trouble
Outdoor unit pressure sensor
trouble