Troubleshooting by Remote Controller
SiUS28-902_a
79
Troubleshooting
k
: ON
h
: OFF
l
: Blink
Malfunction
code
Operation
lamp
Inspection
display
Unit No.
Malfunction contents
Page
Referred
Indoor Unit
A0
l
l
l
Error of external protection device
85
A1
l
l
l
P.C.B. defect, E
2
PROM defect
86
A3
l
l
l
Malfunction of drain level control system (S1L)
87
A6
l
l
l
Fan motor (M1F) lock, overload
89
A7
k
l
l
Malfunction of louver motor (M1S)
90
A9
l
l
l
Malfunction of moving part of electronic expansion
valve (Y1E)
92
AF
k
h
l
Drain level above limit
94
AJ
l
l
l
Malfunction of capacity determination device
95
C4
l
l
l
Malfunction of thermistor (R2T) for heat exchanger
(loose connection, disconnection, short circuit, failure)
96
C5
l
l
l
Malfunction of thermistor (R3T) for gas pipes (loose
connection, disconnection, short circuit, failure)
97
C9
l
l
l
Malfunction of thermistor (R1T) for suction air (loose
connection, disconnection, short circuit, failure)
98
CA
l
l
l
Malfunction of thermistor for discharge air (loose
connection, disconnection, short circuit, failure)
99
CJ
k
l
k
Malfunction of thermostat sensor in remote
controller
100
Outdoor Unit
E1
l
l
l
P.C.B. defect
101
E3
l
l
l
Actuation of high pressure switch
102
E4
l
l
l
Actuation of low pressure sensor
104
E5
l
l
l
Inverter compressor motor lock
106
E6
l
l
l
Standard compressor lock or overcurrent
—
E7
l
l
l
Malfunction of outdoor unit fan motor
108
E9
l
l
l
Malfunction of moving part of electronic expansion
valve (Y1E)
109
F3
l
l
l
Abnormal discharge pipe temperature
111
F6
l
l
l
Refrigerant overcharged
112
H3
k
h
l
Failure of high pressure switch
—
H4
l
l
l
Actuation of low pressure switch
—
H7
l
l
l
Abnormal outdoor fan motor signal
—
H9
l
l
l
Malfunction of thermistor (R1T) for outdoor air
(loose connection, disconnection, short circuit,
failure)
113
J2
l
l
l
Current sensor malfunction
—
J3
l
l
l
Malfunction of discharge pipe thermistor (R2T)
(loose connection, disconnection, short circuit,
failure)
114
J5
l
l
l
Malfunction of thermistor (R3T, R5T) for suction
pipe 1,2 (loose connection, disconnection, short
circuit, failure)
115
J6
l
l
l
Malfunction of thermistor (R4T) for outdoor unit heat
exchanger (loose connection, disconnection, short
circuit, failure)
116
JA
l
l
l
Malfunction of high pressure sensor
117
JC
l
l
l
Malfunction of low pressure sensor
119
L0
l
l
l
Inverter system error
—
L1
l
l
l
Malfunction of P.C.B.
121
L4
l
l
l
Malfunction of inverter radiating fin temperature rise
122
L5
l
l
l
Inverter compressor abnormal
123
L8
l
l
l
Inverter current abnormal
124
L9
l
l
l
Inverter start up error
126
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