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SiUS121827E Code Indication on Remote Controller
Part 6 Service Diagnosis 163
Notes
4.3 Outdoor Unit
i: ON, h: OFF, j: Blinks
1. The error codes in the parenthesis ( ) are displayed only when the system is shut down.
2. When a sensor error occurs, check the remote controller display to determine which sensor is
malfunctioning.
If the remote controller does not indicate the error code, conduct the following procedure.
Turn the power off and then on again. If the same LED indication appears again immediately
after the power is turned on, the fault is in the thermistor.
If the above condition does not result, the fault is in the CT.
3. The indoor unit error code may take the precedence in the remote controller display.
4. Turn the power off and then on again. If the same LED indication appears again, outdoor unit
PCB is faulty. Replace the outdoor unit PCB.
Outdoor Unit LED Indication
Error
Codes
Description
Reference
Page
Green Red
A12345
jhhhhh
00 Normal condition —
UA
Unspecified voltage (between indoor unit and
outdoor unit)
201
UH Anti-icing control in other rooms 201
jhhiih (U0) Refrigerant shortage 195
jihhih U2
Low-voltage detection or over-voltage
detection
198
jhihhh U3 Wiring error check unexecuted 200
jihiih A5 Anti-icing control for indoor unit 202
jiiihh E1 Outdoor unit PCB abnormality 204
jihihh (E5) OL activation (compressor overload) 205
jhiihh (E6) Compressor lock 208
jiiiih E7 DC fan lock 210
jhihih E8 Input overcurrent detection 212
jihhhh EA Four way valve abnormality 214
jihihh F3 Discharge pipe temperature control 216
jihiih F6 High pressure control in cooling 217
jiihhh
H0 Compressor sensor system abnormality 219
H6 Position sensor abnormality 221
H9
Outdoor temperature thermistor or related
abnormality
224
(J3)
Discharge pipe thermistor or related
abnormality
224
J6
Outdoor heat exchanger thermistor or related
abnormality
224
J8 Liquid pipe thermistor or related abnormality 224
J9 Gas pipe thermistor or related abnormality 224
P4 Radiation fin thermistor or related abnormality 224
jiihih L3 Electrical box temperature rise 226
jhhhih L4 Radiation fin temperature rise 227
jhhihh L5 Output overcurrent detection 229
i ————— — See the note 4. —
h ————— — Check the power supply. —
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