Specifications

REM
91
Possible cause of malfunction
Thermistor
fault
Protective
device for
compressor is
activated
Indoor thermistor is either open
or damaged.
Outdoor thermistor is either
open or damaged.
Protective device for compressor
No. 1 is activated.
Protective device for compressor
No. 2 is activated.
Low oil level.
Oil sensor fault.
Indoor coil temp. sensor (E1)
Indoor coil temp. sensor (E2)
Indoor coil temp. sensor (E3)
Indoor suction air (room) temp. sensor (TA)
Indoor discharge air temp. sensor (BL)
Comp. No. 1 discharge gas temp. sensor (DISCH1)
Comp. No. 2 discharge gas temp. sensor (DISCH2)
Outdoor No. 1 coil gas temp. sensor
(EXG1)
Outdoor No. 1 coil liquid temp. sensor
(EXL1)
Outdoor air temp. sensor (AIR TEMP)
Outdoor No. 2 coil gas temp. sensor (EXG2)
Outdoor No. 2 coil liquid temp. sensor (EXL2)
Overload current is detected.
Lock current is detected.
Current is not detected when comp. No. 1 is ON.
Overload current is detected.
Lock current is detected.
Current is not detected when comp. No. 2 is ON.
Low pressure switch is activated.
Comp. No. 1 oil sensor
Comp. No. 2 oil sensor
EEP ROM on indoor unit P.C.B. failure
Alarm
message
<<F01>>
<<F02>>
<<F03>>
<<F10>>
<<F11>>
F04
F05
F06
F07
F08
F12
F16
F23
F24
F29
F31
H01
H02
H03
H05
H15
H11
H12
H13
H06
H07
H08
H27
(Disconnection, etc.)
High pressure sensor
EEP ROM on the main or sub outdoor unit P.C.B. is a failure.
Discharge gas temperature of the comp. No. 1 is not detected.
Temp. sensor is not seated at the sensor holder.
Discharge gas temperature of the comp. No. 2 is not detected.
Protective device in outdoor unit
is activated.
P02
P03
P04
P05
P17
P22
P26
H31
P16
P29
Compressor thermal protector is activated.
Power supply voltage is unusual. (The voltage is more than 260 V
or less than 160 V between L and N phase.)
Incorrect discharge temperature. (Comp. No. 1)
High pressure switch is activated.
Negative (Defective) phase.
Incorrect discharge temperature. (Comp. No. 2)
Activation of
protective
device
Outdoor unit fan motor is unusual.
Inverter for compressor is unusual. (DC compressor does not
operate.)
Overcurrent at time of compressor runs more than 80Hz (DCCT
secondary current or ACCT primary current is detected at a time
other than when IPM has tripped.)
Compressor running failure resulting from missing phase in the
compressor wiring, etc. (Start failure not caused by IPM or no gas.)
IPM trip (IPM current or temperature)
Compressor intake port temperature sensor (RDT)
Continued
Negative (defective) N phase.
04-396 InverterW_p51-108 ARGO 12/21/04 10:17 AM Page 91